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let 's think about how we can define `` matrix addition . '' and mathematicians could have chosen any of an arbitrary number of ways to define addition . but they 've picked a way to define addition that seems – one – to make sense , and it also has nice properties that allow us to do interesting things with matrices l... | this is undefined . so we do not define matrix addition , or matrix subtraction , when the matrices have different dimensions . there did n't seem to be any reasonable way to do this , that would actually be useful and logically consistent in some nice way . | how do scientists carry out super complex matrix operations when different dimension operations are n't allowed ? |
let 's think about how we can define `` matrix addition . '' and mathematicians could have chosen any of an arbitrary number of ways to define addition . but they 've picked a way to define addition that seems – one – to make sense , and it also has nice properties that allow us to do interesting things with matrices l... | i could 've done this the other way around , if i did this the other way around -so let me copy and paste this- so if i were to add this matrix -so let me copy , let me paste it- if i were to add that matrix to -let me copy and paste the other one- this matrix , copy and paste , you 'll see that the order in which i 'm... | if a and b are both matrices of the same size sal said that a + b = b + a my question is : does a - b = b - a ? |
let 's think about how we can define `` matrix addition . '' and mathematicians could have chosen any of an arbitrary number of ways to define addition . but they 've picked a way to define addition that seems – one – to make sense , and it also has nice properties that allow us to do interesting things with matrices l... | `` okay sal , i understand when i 'm adding or subtracting matrices with the same dimensions i just add or subtract the corresponding terms . but what happens when i have matrices with different dimensions ? '' so , for example , what about the scenario where i want to add the matrix one , zero , three , five , zero , ... | at the end , where it says that adding different dimensions is undefined- how about let 's say 2x3 + 3x2 ? |
let 's think about how we can define `` matrix addition . '' and mathematicians could have chosen any of an arbitrary number of ways to define addition . but they 've picked a way to define addition that seems – one – to make sense , and it also has nice properties that allow us to do interesting things with matrices l... | so let 's once again think about matrices that have the same dimensions . so let 's say i 'm gon na do then two two-by-two matrices . so let 's say it 's zero , one , three , two , and from that i want to subtract negative one , three , zero , and five . | does any body know how can we check two matrices are equivalent ? |
let 's think about how we can define `` matrix addition . '' and mathematicians could have chosen any of an arbitrary number of ways to define addition . but they 've picked a way to define addition that seems – one – to make sense , and it also has nice properties that allow us to do interesting things with matrices l... | but what happens when i have matrices with different dimensions ? '' so , for example , what about the scenario where i want to add the matrix one , zero , three , five , zero , one to the matrix -so this a three-by-two matrix- and i wan na add it to , let 's say , a two-by-two matrix . five , seven , negative one , ze... | that matrix represents these two equations [ 0x = 1 ] first line and [ 3x = 2 ] [ 0x = 1 ] nonsense in a way ? |
let 's think about how we can define `` matrix addition . '' and mathematicians could have chosen any of an arbitrary number of ways to define addition . but they 've picked a way to define addition that seems – one – to make sense , and it also has nice properties that allow us to do interesting things with matrices l... | well , the most common-sense thing that might have jumped out at you – especially because these two matrices have the same dimensions – ( this is a 2-by-3 matrix . it has 2 rows and 3 columns . this is also a 2-by-3 matrix . it also has 2 rows and 3 columns . ) – is to just add the corresponding entries . | ie [ 1 , 2 , 3 ] + [ 1 , 2 ; 3 , 4 ] could be changed to look like [ 1 , 2 , 3 ; 0 , 0 , 0 ] + [ 1 , 2 , 0 ; 3 , 4 , 0 ] is there just no good reason to add two matrices of different lengths ? |
let 's think about how we can define `` matrix addition . '' and mathematicians could have chosen any of an arbitrary number of ways to define addition . but they 've picked a way to define addition that seems – one – to make sense , and it also has nice properties that allow us to do interesting things with matrices l... | this is undefined . this is undefined . so we do not define matrix addition , or matrix subtraction , when the matrices have different dimensions . there did n't seem to be any reasonable way to do this , that would actually be useful and logically consistent in some nice way . | why exactly are addition and subtraction of pairs of matrices with different dimensions undefined ? |
let 's think about how we can define `` matrix addition . '' and mathematicians could have chosen any of an arbitrary number of ways to define addition . but they 've picked a way to define addition that seems – one – to make sense , and it also has nice properties that allow us to do interesting things with matrices l... | this is undefined . so we do not define matrix addition , or matrix subtraction , when the matrices have different dimensions . there did n't seem to be any reasonable way to do this , that would actually be useful and logically consistent in some nice way . | is it then because with pairs of matrices with different dimensions each , there 's no logically/mathematically rigorous way of determining which place in one matrix corresponds to which place in the other matrix ? |
let 's think about how we can define `` matrix addition . '' and mathematicians could have chosen any of an arbitrary number of ways to define addition . but they 've picked a way to define addition that seems – one – to make sense , and it also has nice properties that allow us to do interesting things with matrices l... | well , the most common-sense thing that might have jumped out at you – especially because these two matrices have the same dimensions – ( this is a 2-by-3 matrix . it has 2 rows and 3 columns . this is also a 2-by-3 matrix . | for the subtraction and the addition of matrices , what does the order have to be , column into rows is equal to column into rows ; i.e c*r=c*r. does the rows of the 1st matrix has to be equal to the 2nd column of the matrix or do the columns and rows of both matrices have to be equal ? |
let 's think about how we can define `` matrix addition . '' and mathematicians could have chosen any of an arbitrary number of ways to define addition . but they 've picked a way to define addition that seems – one – to make sense , and it also has nice properties that allow us to do interesting things with matrices l... | let 's think about how we can define `` matrix addition . '' and mathematicians could have chosen any of an arbitrary number of ways to define addition . | can someone indicate the difference to me ? |
let 's think about how we can define `` matrix addition . '' and mathematicians could have chosen any of an arbitrary number of ways to define addition . but they 've picked a way to define addition that seems – one – to make sense , and it also has nice properties that allow us to do interesting things with matrices l... | `` okay sal , i understand when i 'm adding or subtracting matrices with the same dimensions i just add or subtract the corresponding terms . but what happens when i have matrices with different dimensions ? '' so , for example , what about the scenario where i want to add the matrix one , zero , three , five , zero , ... | is n't multipling whole numbers ( scalars ) and matrices considered multiplying matrices of different dimensions ? |
let 's think about how we can define `` matrix addition . '' and mathematicians could have chosen any of an arbitrary number of ways to define addition . but they 've picked a way to define addition that seems – one – to make sense , and it also has nice properties that allow us to do interesting things with matrices l... | `` okay sal , i understand when i 'm adding or subtracting matrices with the same dimensions i just add or subtract the corresponding terms . but what happens when i have matrices with different dimensions ? '' so , for example , what about the scenario where i want to add the matrix one , zero , three , five , zero , ... | so , adding and subtracting matrices with different dimensions is simply just undefined ? |
let 's think about how we can define `` matrix addition . '' and mathematicians could have chosen any of an arbitrary number of ways to define addition . but they 've picked a way to define addition that seems – one – to make sense , and it also has nice properties that allow us to do interesting things with matrices l... | now let me ask you an interesting question . what if i wanted to subtract matrices ? so let 's once again think about matrices that have the same dimensions . | is there a process flow chart on how to work with matrices ? |
let 's think about how we can define `` matrix addition . '' and mathematicians could have chosen any of an arbitrary number of ways to define addition . but they 've picked a way to define addition that seems – one – to make sense , and it also has nice properties that allow us to do interesting things with matrices l... | now let me ask you an interesting question . what if i wanted to subtract matrices ? so let 's once again think about matrices that have the same dimensions . | what are the purpose of matrices if we have tables and other ways to display data ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | some of it is byproduct . some of this is actually used to fuel the refining process . so let me not write that number . | does anyone know if diesel is part of the same distillation process and why is diesel so much more then gas when it is a cruder process ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | and this is on a per gallon basis . and these are the prices right over here in new york . but they do n't move completely lock step . | why do petrol prices keep increasing ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | but actually a huge amount of that $ 0.15 actually goes to the credit card processors . because most people pay the pump with a credit card . and that 's why some gas stations like it , will give you a discount if you pay in cash , because of that $ 0.15 as much as , and or in general around $ 0.05 of that will go to t... | how do the ceos pay the workers ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | but anyway , let 's get back to the gasoline . so the refinery got $ 3.25 . now we have to transport that gasoline . | do you have information on what goes into the refinery agreeing to pay a specific price , in this case $ 3.25/gal ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . | for the oil/gas prices graph , would n't the axes be switched because of the weird economics standard ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | it could be jet fuel . it could be natural gas . and it could be obviously fuel to actually fuel the refinery . | what is so important about the price of gas in this world ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | but they 're both doing the same fundamental thing . they 're drilling into the ground until they get to a pocket of oil . and then they will pump that oil out and try to transport it to the market somehow , first going through a refinery . | does the other oil get used , or does it just get disposed ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | there essentially it 's going to cost $ 3.85 a gallon for that fuel . the gas station needs to make some money to pay their costs . the gas station sales you that fuel at $ 4 a gallon . | does the gas station make more or less from those ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | it 's stuff like motor oil . it could be jet fuel . it could be natural gas . | could someone explain the concept of the crack spread ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | so this right over here , you are probably familiar with these . these are oil rigs , two very different types . this is an offshore oil rig . this is a land based oil rig . | where does most of our oil come from in the world ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . | i mean what is the importance of breakdown of gas prices in the laws of supply , demand and market equilibrium ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . | how does oil and gas relate to microeconomics ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | these are oil rigs , two very different types . this is an offshore oil rig . this is a land based oil rig . | how come the company has to pay for the crude if they own the rig ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | i know this is getting messy . so the retailer will be left with about $ 0.10 of margin . so anyway , hopefully that gives you a sense of how crude oil turns into gasoline . | wait ... at around 7 , how do gas stations get any money ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | $ 4 minus the $ 3.85 that takes in all of these other costs . but actually a huge amount of that $ 0.15 actually goes to the credit card processors . because most people pay the pump with a credit card . and that 's why some gas stations like it , will give you a discount if you pay in cash , because of that $ 0.15 as ... | why do credit card companies get a share of money paid ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | and then they 're going to get $ 35 for the other stuff . so they made a combination of , what is it , they made $ 100 . they 're able to buy this crude oil at $ 90 , do what they had to do . | does crack spread mean the marginal profit made on buying the gasoline ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . | do we need to know this breakdown of gas prices in reading microeconomics ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . | what is the government 's incentive to put high taxes on gas prices ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . | question : i heard they political elections will affect gas prices ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | and some of this other stuff is quite useful . it 's stuff like motor oil . it could be jet fuel . | i do n't know much about economics but it sounds like the economy can be thrown off balance easily ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | but actually a huge amount of that $ 0.15 actually goes to the credit card processors . because most people pay the pump with a credit card . and that 's why some gas stations like it , will give you a discount if you pay in cash , because of that $ 0.15 as much as , and or in general around $ 0.05 of that will go to t... | how does the crack spread relate to the price of gasoline you pay at the pump ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | and then it 's been trending up ever since . now it 's about $ 100 per barrel . this is where we see the oil prices are per barrel basis . and then related to that you see the price of gasoline . | why is it that gas prices do not fall as fast as they rise in relation to the price per barrel of crude oil ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | now it 's about $ 100 per barrel . this is where we see the oil prices are per barrel basis . and then related to that you see the price of gasoline . | why are oil prices dropping dramatically ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | and so from this barrel they 're going to get 20 gallons of gasoline . they can sell that at $ 3.25 per gallon . so you 're going to have 20 times $ 3.25 , which is let 's see 20 times 3 is 60 . | also , does he imply to say that the 0.25 $ is the refinery 's profit margin per gallon ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | it can be very dangerous working on an oil rig . and obviously , if there 's an accident on them it could be an environmental nightmare , like what we saw what the bp situation . but it is undoubtedly an engineering marvel . | what is the bp situation that sal tries to refer to ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | but you do see it trends up when oil prices trend up and then it goes down . and this is on a per gallon basis . and these are the prices right over here in new york . | is the retailer only making 10cents per gallon ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | now it 's about $ 100 per barrel . this is where we see the oil prices are per barrel basis . and then related to that you see the price of gasoline . | i do n't see how oil prices relate to economics ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | so this right over here , you are probably familiar with these . these are oil rigs , two very different types . this is an offshore oil rig . this is a land based oil rig . | so basically , no matter the economic environment , fluctuations , or quantity of oil available , the oil rig is at all times making a profit ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | and this right over here , you could say is how much the refinery actually makes . and the amount that the refinery gets versus what it costs -- so the amount they get for all of the product they produce versus the crude oil that they have to pay for , this margin , this is often called the crack spread . and just to u... | wait , can someone explain the crack spread to me in more detail ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | they 're drilling into the ground until they get to a pocket of oil . and then they will pump that oil out and try to transport it to the market somehow , first going through a refinery . offshore is really fascinating . | if the oil refinery has to pay the employees how are they going to make any sort of profit ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | so the retailer will be left with about $ 0.10 of margin . so anyway , hopefully that gives you a sense of how crude oil turns into gasoline . and when you pay at the pump what is the breakdown for the different players . | what do you mean by chains , are you referring to the molecular structure of crude oil ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | so this right over here , you are probably familiar with these . these are oil rigs , two very different types . this is an offshore oil rig . this is a land based oil rig . | does shorter chain produces inferior quality oil ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | and then it goes to the gas station . and as i mentioned , gas is heavily , heavily taxed . and depends on what jurisdiction , what country , and even states within countries . | why is oil heavily taxed even though it is a everyday necessity ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | and this right over here , you could say is how much the refinery actually makes . and the amount that the refinery gets versus what it costs -- so the amount they get for all of the product they produce versus the crude oil that they have to pay for , this margin , this is often called the crack spread . and just to u... | what is the importances of the `` crack spread '' ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | and this right over here , you could say is how much the refinery actually makes . and the amount that the refinery gets versus what it costs -- so the amount they get for all of the product they produce versus the crude oil that they have to pay for , this margin , this is often called the crack spread . and just to u... | what 's a crack spread ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | it could be jet fuel . it could be natural gas . and it could be obviously fuel to actually fuel the refinery . | so natural gas is a byproduct of refining oil ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | and some of this other stuff is quite useful . it 's stuff like motor oil . it could be jet fuel . | is it ever found in nature ( in a gas state ) like in underground vents near oil deposits or from being caused by geological activity ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . | does the graph of oil and gas prices show the cost for producers for making oil and gasoline , or the amount of money the consumer pays for when buying gas ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | so let 's say that the current price of oil -- and i kind of rigged the numbers , not to be too punny -- to work out fairly well . but let 's say that the current price of oil is $ 90 per barrel . so , and this is just a units thing , a barrel is equal to 42 gallons . | is it fair to say that this example does n't account for the amount of money the refinery needed to spend to process the $ 90 of crude oil before they could sell it for $ 100 and that they would probably make less than $ 10 when you account for processing costs ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | so the retailer will be left with about $ 0.10 of margin . so anyway , hopefully that gives you a sense of how crude oil turns into gasoline . and when you pay at the pump what is the breakdown for the different players . | what is gasoline and crude oil , and what is it used for ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | and this right over here , you could say is how much the refinery actually makes . and the amount that the refinery gets versus what it costs -- so the amount they get for all of the product they produce versus the crude oil that they have to pay for , this margin , this is often called the crack spread . and just to u... | does anyone can explain that term crack spread ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | and this is on a per gallon basis . and these are the prices right over here in new york . but they do n't move completely lock step . | the blue line in the given graph denotes new york state 's oil prices ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | $ 4 minus the $ 3.85 that takes in all of these other costs . but actually a huge amount of that $ 0.15 actually goes to the credit card processors . because most people pay the pump with a credit card . and that 's why some gas stations like it , will give you a discount if you pay in cash , because of that $ 0.15 as ... | what is the credit card procces ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | it could be jet fuel . it could be natural gas . and it could be obviously fuel to actually fuel the refinery . | can anyone explain how the hedging-mechanics involved drive the gas price up and down thus defying the law of supply and demand ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | so this right over here , you are probably familiar with these . these are oil rigs , two very different types . this is an offshore oil rig . this is a land based oil rig . | how many barrels of oil are there worldwide and how many years of oil are there left ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | so that is tax right over there going to the state and federal government . and so let 's see $ 3.25 is what the refinery got , $ 0.10 for transportation , gets us to $ 3.35 , $ 0.50 tax , so this is $ 0.50 tax , gets us to $ 3.85 . and then now we 're at the gas station . | so tax is applied before the 0.15 cents extra ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | and then it 's been trending up ever since . now it 's about $ 100 per barrel . this is where we see the oil prices are per barrel basis . and then related to that you see the price of gasoline . | per barrel , what are the approximate operating costs of the oil rigs ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | but actually a huge amount of that $ 0.15 actually goes to the credit card processors . because most people pay the pump with a credit card . and that 's why some gas stations like it , will give you a discount if you pay in cash , because of that $ 0.15 as much as , and or in general around $ 0.05 of that will go to t... | would you want to pay or use your credit card ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | and it obviously depends how you account for it . but a good chunk of it , not the cost of gasoline , a good chunk of it is the cost the crude . and this right over here , you could say is how much the refinery actually makes . and the amount that the refinery gets versus what it costs -- so the amount they get for all... | how much does the extraction process cost ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | and this right over here , you could say is how much the refinery actually makes . and the amount that the refinery gets versus what it costs -- so the amount they get for all of the product they produce versus the crude oil that they have to pay for , this margin , this is often called the crack spread . and just to u... | what is the crack spread ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . | why are the gas prices going high now ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | because most people pay the pump with a credit card . and that 's why some gas stations like it , will give you a discount if you pay in cash , because of that $ 0.15 as much as , and or in general around $ 0.05 of that will go to the credit cards , will go to the credit card processors , credit card fees . i know this... | why would the gas stations give customers a discount when paying with cash ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | but actually a huge amount of that $ 0.15 actually goes to the credit card processors . because most people pay the pump with a credit card . and that 's why some gas stations like it , will give you a discount if you pay in cash , because of that $ 0.15 as much as , and or in general around $ 0.05 of that will go to t... | it is because they want to give them an incentive to keep paying with cash so that the credit card companies do n't benefit from the transaction ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | and this right over here , you could say is how much the refinery actually makes . and the amount that the refinery gets versus what it costs -- so the amount they get for all of the product they produce versus the crude oil that they have to pay for , this margin , this is often called the crack spread . and just to u... | can someone explain throughly what the crack spread is ? |
what i hope to do in this video is explore the relationship between oil and gas prices . and you do see that there is a very strong correlation between how they trend . this right over here is oil prices , quoted at a specific point on the planet . it is dependent on where you are . as you can see , this is in us dolla... | it could go straight to a tanker . actually even some offshore places you could use a tanker . or sometimes even if they 're close enough to land they actually might have a pipeline that will take it to land where it can go to a refinery or go to an oil tanker so it can be transported even farther . | why can 's cars use diesel ? |
the frequency that you 'll observe when standing next to a speaker is determined by the rate at which wave crests strike your location . if the speaker moves toward you , you 'll hear a higher frequency . if the speaker moves away from you , you 'll hear a lower frequency . but what will happen if you run toward the s... | note that the faster the observer moves , the higher the note or pitch . this formula only works for the case of an observer moving toward a source . what do we do if the observer is moving away from the source ? let 's start all over from the very beginning . | how would you solve for the velocity of the observer if the observer first goes towards the source then away from the source ? |
the frequency that you 'll observe when standing next to a speaker is determined by the rate at which wave crests strike your location . if the speaker moves toward you , you 'll hear a higher frequency . if the speaker moves away from you , you 'll hear a lower frequency . but what will happen if you run toward the s... | note that the faster the observer moves , the higher the note or pitch . this formula only works for the case of an observer moving toward a source . what do we do if the observer is moving away from the source ? let 's start all over from the very beginning . | is the period affected too if the observer is going to the source or away from the source ? |
the frequency that you 'll observe when standing next to a speaker is determined by the rate at which wave crests strike your location . if the speaker moves toward you , you 'll hear a higher frequency . if the speaker moves away from you , you 'll hear a lower frequency . but what will happen if you run toward the s... | note that the faster the observer moves , the higher the note or pitch . this formula only works for the case of an observer moving toward a source . what do we do if the observer is moving away from the source ? | what would the formula be if the two objects are moving 1 ) towards each other ? |
the frequency that you 'll observe when standing next to a speaker is determined by the rate at which wave crests strike your location . if the speaker moves toward you , you 'll hear a higher frequency . if the speaker moves away from you , you 'll hear a lower frequency . but what will happen if you run toward the s... | phew , there it is . this is the formula to find the frequency experienced by an observer moving toward a source of sound . note that the faster the observer moves , the higher the note or pitch . | what will be the frequency heard by a stationary observer if source is moving towards the observer with speed of sound ? |
the frequency that you 'll observe when standing next to a speaker is determined by the rate at which wave crests strike your location . if the speaker moves toward you , you 'll hear a higher frequency . if the speaker moves away from you , you 'll hear a lower frequency . but what will happen if you run toward the s... | phew , there it is . this is the formula to find the frequency experienced by an observer moving toward a source of sound . note that the faster the observer moves , the higher the note or pitch . | will observer hear any sound ? |
the frequency that you 'll observe when standing next to a speaker is determined by the rate at which wave crests strike your location . if the speaker moves toward you , you 'll hear a higher frequency . if the speaker moves away from you , you 'll hear a lower frequency . but what will happen if you run toward the s... | note that the faster the observer moves , the higher the note or pitch . this formula only works for the case of an observer moving toward a source . what do we do if the observer is moving away from the source ? | what formula would be using when the source move toward to the observer and the observer move toward to the source at the same time ? |
the frequency that you 'll observe when standing next to a speaker is determined by the rate at which wave crests strike your location . if the speaker moves toward you , you 'll hear a higher frequency . if the speaker moves away from you , you 'll hear a lower frequency . but what will happen if you run toward the s... | the frequency that you 'll observe when standing next to a speaker is determined by the rate at which wave crests strike your location . if the speaker moves toward you , you 'll hear a higher frequency . | how does the speaker strike your location ? |
the frequency that you 'll observe when standing next to a speaker is determined by the rate at which wave crests strike your location . if the speaker moves toward you , you 'll hear a higher frequency . if the speaker moves away from you , you 'll hear a lower frequency . but what will happen if you run toward the s... | this time is just going to be the period you observe since it 'll be the time you experience between wave crests . we 'll write the time as tobs for period of the observer . similarly , the distance the next wave crest will travel in meeting you , will be the speed of the wave vw times that same amount of time , which ... | at about why is time taken by the wave to reach the observer tobs ? |
the frequency that you 'll observe when standing next to a speaker is determined by the rate at which wave crests strike your location . if the speaker moves toward you , you 'll hear a higher frequency . if the speaker moves away from you , you 'll hear a lower frequency . but what will happen if you run toward the s... | phew , there it is . this is the formula to find the frequency experienced by an observer moving toward a source of sound . note that the faster the observer moves , the higher the note or pitch . | will the frequency stay the same if an object making a sound is moving towards you , than when it is stationary ? |
- let 's now see if we can tackle the questions . the passage most strongly suggests that researchers at the martin prosperity institute share which assumption ? we saw the writer , he works for the martin prosperity institute . and he 's trying to quantify how much cost there is involved when people having to commute ... | but they 're not saying that that would convert directly to additional productive work . it could be time for the person to recharge , etcetera it did n't into a lot of detail with what the person would do with that time , it just quantified that time in terms of lost work time . but out of all of them , i 'll go with ... | what is a tip to be a fast reader while understanding it at the same time ? |
- let 's now see if we can tackle the questions . the passage most strongly suggests that researchers at the martin prosperity institute share which assumption ? we saw the writer , he works for the martin prosperity institute . and he 's trying to quantify how much cost there is involved when people having to commute ... | i mean this is interesting . let 's read the other choices . employees can conduct business activities such as composing memos or joining conference calls while commutting . | how many minutes do you recommand to read a single passage during the act ? |
- let 's now see if we can tackle the questions . the passage most strongly suggests that researchers at the martin prosperity institute share which assumption ? we saw the writer , he works for the martin prosperity institute . and he 's trying to quantify how much cost there is involved when people having to commute ... | - let 's now see if we can tackle the questions . the passage most strongly suggests that researchers at the martin prosperity institute share which assumption ? | who won the nobel prize winning economist ? |
- let 's now see if we can tackle the questions . the passage most strongly suggests that researchers at the martin prosperity institute share which assumption ? we saw the writer , he works for the martin prosperity institute . and he 's trying to quantify how much cost there is involved when people having to commute ... | - let 's now see if we can tackle the questions . the passage most strongly suggests that researchers at the martin prosperity institute share which assumption ? | sometimes in passages there are phrases that in the questions following they may ask you `` the author uses the phrase `` ... `` mainly to .. `` ? |
the quotient of two polynomials -- a of x and b of x -- can be written in the form a of x over b of x is equal to q of x plus r of x over b of x -- where q of x and r of x are polynomials and the degree of r of x is less than the degree of b of x . write the quotient 7x to the sixth plus x to the third plus 2x plus 1 o... | but remember , we want to write it in a form of r of x over b of x -- where r of x has a lower degree than b of x . well , 2x has a lower degree than x squared . here this is degree 1 . this is degree 2 . so you could write it as plus 2x over x squared . | how do i know what degree something is ? |
the quotient of two polynomials -- a of x and b of x -- can be written in the form a of x over b of x is equal to q of x plus r of x over b of x -- where q of x and r of x are polynomials and the degree of r of x is less than the degree of b of x . write the quotient 7x to the sixth plus x to the third plus 2x plus 1 o... | the quotient of two polynomials -- a of x and b of x -- can be written in the form a of x over b of x is equal to q of x plus r of x over b of x -- where q of x and r of x are polynomials and the degree of r of x is less than the degree of b of x . write the quotient 7x to the sixth plus x to the third plus 2x plus 1 o... | why not use long division ? |
the quotient of two polynomials -- a of x and b of x -- can be written in the form a of x over b of x is equal to q of x plus r of x over b of x -- where q of x and r of x are polynomials and the degree of r of x is less than the degree of b of x . write the quotient 7x to the sixth plus x to the third plus 2x plus 1 o... | well , x to the sixth divided by x squared is x to the fourth . so it 's going to be 7x to the fourth power . and then , same thing right over here . | how are you getting 7xto the 6th power to 7x to the 4th power ? |
the quotient of two polynomials -- a of x and b of x -- can be written in the form a of x over b of x is equal to q of x plus r of x over b of x -- where q of x and r of x are polynomials and the degree of r of x is less than the degree of b of x . write the quotient 7x to the sixth plus x to the third plus 2x plus 1 o... | and then , they want plus r of x over b of x so plus some polynomial over x squared in this case . so instead of writing it as 2x over x squared plus 1 over x squared , we could just write it as 2x plus 1 over x squared . so one way to think about it . | is n't the remainder of the division supposed to be 2x-1 instead of 2x+1 ? |
the quotient of two polynomials -- a of x and b of x -- can be written in the form a of x over b of x is equal to q of x plus r of x over b of x -- where q of x and r of x are polynomials and the degree of r of x is less than the degree of b of x . write the quotient 7x to the sixth plus x to the third plus 2x plus 1 o... | the quotient of two polynomials -- a of x and b of x -- can be written in the form a of x over b of x is equal to q of x plus r of x over b of x -- where q of x and r of x are polynomials and the degree of r of x is less than the degree of b of x . write the quotient 7x to the sixth plus x to the third plus 2x plus 1 o... | how do you even divide them ? |
the quotient of two polynomials -- a of x and b of x -- can be written in the form a of x over b of x is equal to q of x plus r of x over b of x -- where q of x and r of x are polynomials and the degree of r of x is less than the degree of b of x . write the quotient 7x to the sixth plus x to the third plus 2x plus 1 o... | 7x to the sixth divided by x squared is 7x to the fourth . x to the third divided by x squared is x . and then , once i got two terms that had a lower degree than x squared , i just left on there . | why does n't 2x/ ( x^2 ) just simplify to 2/x ? |
the quotient of two polynomials -- a of x and b of x -- can be written in the form a of x over b of x is equal to q of x plus r of x over b of x -- where q of x and r of x are polynomials and the degree of r of x is less than the degree of b of x . write the quotient 7x to the sixth plus x to the third plus 2x plus 1 o... | so you could write it like that . but that 's not exactly the form that they want . they want us to write it q of x -- and you could view that as 7x to the fourth plus x . | what is useful about writing in that particular form ? |
the quotient of two polynomials -- a of x and b of x -- can be written in the form a of x over b of x is equal to q of x plus r of x over b of x -- where q of x and r of x are polynomials and the degree of r of x is less than the degree of b of x . write the quotient 7x to the sixth plus x to the third plus 2x plus 1 o... | and then , they want plus r of x over b of x so plus some polynomial over x squared in this case . so instead of writing it as 2x over x squared plus 1 over x squared , we could just write it as 2x plus 1 over x squared . so one way to think about it . | are n't we supposed to get a negative exponent ( ^-1 ) when 2x/x^2 , the putting it on the bottom as a possitive exponent ? |
- [ sal ] we 've already had several videos where we give an overview of the crusades . and just as a review , they happen over roughly 200 years during the high middle ages . the first crusade at very end of the 11th century and actually the most successful of the crusades , allowing the western european powers to tak... | - [ sal ] we 've already had several videos where we give an overview of the crusades . and just as a review , they happen over roughly 200 years during the high middle ages . | how heavy was medieval armor ? |
- [ sal ] we 've already had several videos where we give an overview of the crusades . and just as a review , they happen over roughly 200 years during the high middle ages . the first crusade at very end of the 11th century and actually the most successful of the crusades , allowing the western european powers to tak... | if they die , and many of these lords do end up dying , they 're giving their property to the church , headed by the pope . kings also gained power during the crusades . in other videos , we talk about the feudal system and many times the vassals to the kings , the dukes , the counts , the barons , often had more contr... | did the crusades have an impact upon religion at the time and how many believers were lost or gained in both islam and christianity ? |
- [ sal ] we 've already had several videos where we give an overview of the crusades . and just as a review , they happen over roughly 200 years during the high middle ages . the first crusade at very end of the 11th century and actually the most successful of the crusades , allowing the western european powers to tak... | in a lot of ways , they were shepherding the knowledge of the ancient greeks and the romans and they were merging that with knowledge from the indians and the chinese and also coming up with innovations on their own . and a lot of the western europeans brought that back to europe . | what difference did the crusdaes make to the europeans ? |
- [ sal ] we 've already had several videos where we give an overview of the crusades . and just as a review , they happen over roughly 200 years during the high middle ages . the first crusade at very end of the 11th century and actually the most successful of the crusades , allowing the western european powers to tak... | if they die , and many of these lords do end up dying , they 're giving their property to the church , headed by the pope . kings also gained power during the crusades . in other videos , we talk about the feudal system and many times the vassals to the kings , the dukes , the counts , the barons , often had more contr... | what difference did the crusades make to the islamic ? |
- [ sal ] we 've already had several videos where we give an overview of the crusades . and just as a review , they happen over roughly 200 years during the high middle ages . the first crusade at very end of the 11th century and actually the most successful of the crusades , allowing the western european powers to tak... | well , one of the obvious impacts of the crusades was just the amount of death it caused . it 's estimated that the death toll from the crusades is two to six million people just from western europe . and just to put that into perspective , the european population at the time was about 60 to 70 million folks . | when speaking of the death toll were the deaths mainly soldiers and people who tried to stop the crusades and war , or civilians too ? |
- andrei has a glass tank . first , he wants to put some marbles in it , all of the same volume . then , he wants to fill the tank with water until it 's completely full . this is the formula for the volume of water andrei should use w , measured in liters , as a function of the number of marbles used n. and we see tha... | - andrei has a glass tank . first , he wants to put some marbles in it , all of the same volume . | what is the point of math ? |
- andrei has a glass tank . first , he wants to put some marbles in it , all of the same volume . then , he wants to fill the tank with water until it 's completely full . this is the formula for the volume of water andrei should use w , measured in liters , as a function of the number of marbles used n. and we see tha... | so , the highest that this could be is 32 , 'cause that 's the most water you would put in . if you had no marbles , you would just fill up the tank and put in 32 liters . then , every marble that you put in , you 're going to have to put in 0.05 less liters . you see that , you have minus 0.05 times n. so , every time... | why would i put `` n '' as 0 ca n't i just put 1 or 3 ? |
we 've already looked at several ways of writing linear equations . you could write it in slope-intercept form , where it would be of the form of y is equal to mx plus b , where m and b are constants . m is the coefficient on this mx term right over here and m would represent the slope . and then from b you 're able t... | standard . standard form . and standard form takes the shape of ax plus by is equal to c , where a , b , and c are integers . | why do the a , b , and c values of a standard form equation have to be whole numbers ( and not fractions ) ? |
we 've already looked at several ways of writing linear equations . you could write it in slope-intercept form , where it would be of the form of y is equal to mx plus b , where m and b are constants . m is the coefficient on this mx term right over here and m would represent the slope . and then from b you 're able t... | another way is point-slope . point-slope form . and in point-slope form , if you know that some , if you know that there 's an equation where the line that represents the solutions of that equation has a slope m. slope is equal to m. and if you know that x equals , x equals a , y equals b , satisfies that equation , th... | i thought that in slope interecept form , the m & b ca n't be less than zero ... so how are those numbers negative ? |
we 've already looked at several ways of writing linear equations . you could write it in slope-intercept form , where it would be of the form of y is equal to mx plus b , where m and b are constants . m is the coefficient on this mx term right over here and m would represent the slope . and then from b you 're able t... | standard . standard form . and standard form takes the shape of ax plus by is equal to c , where a , b , and c are integers . | is the standard form is ax+by=c ? |
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