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just in case we encounter any more trolls who want us to figure out what types of money they have in their pockets , we have devised an exercise for you to practice with . and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . and they give us two e... | just in case we encounter any more trolls who want us to figure out what types of money they have in their pockets , we have devised an exercise for you to practice with . and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . | is there some sort of equation for all the systems of equations ? |
just in case we encounter any more trolls who want us to figure out what types of money they have in their pockets , we have devised an exercise for you to practice with . and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . and they give us two e... | so first let 's graph this first equation . so the first thing i see is its y-intercept is negative 5 . or another way to think about it , when x is equal to 0 , y is going to be negative 5 . | so on 5 he can clearly see that the intercept are whole numbers , but what if the lines intercept when half way in between ? |
just in case we encounter any more trolls who want us to figure out what types of money they have in their pockets , we have devised an exercise for you to practice with . and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . and they give us two e... | this first one in blue , y is equal to 7/5x minus 5 , and then this one in green , y is equal to 3/5x minus 1 . so let 's graph each of these , and we 'll do it in the corresponding color . so first let 's graph this first equation . so the first thing i see is its y-intercept is negative 5 . | when sal is using that program to graph things , is there a link to that ? |
just in case we encounter any more trolls who want us to figure out what types of money they have in their pockets , we have devised an exercise for you to practice with . and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . and they give us two e... | and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . and they give us two equations . | for what values of `` h `` is the following system consistent ? |
just in case we encounter any more trolls who want us to figure out what types of money they have in their pockets , we have devised an exercise for you to practice with . and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . and they give us two e... | and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . and they give us two equations . | how do you solve one of these problems , on a graph , with the y-intercept a fraction ? |
just in case we encounter any more trolls who want us to figure out what types of money they have in their pockets , we have devised an exercise for you to practice with . and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . and they give us two e... | so if we move over 5 to the right , we will move up 3 . so we will go right over there , and it looks like they intersect right at that point , right at the point x is equal to 5 , y is equal to 2 . so we 'll type in x is equal to 5 , y is equal to 2 . | so , on the quiz , on questions like -2y + 4x = 8 , you 're supposed to have `` y '' alone and make `` x '' a fraction by including `` /1 '' to `` x '' and just use the simple rule : `` y = mx + b '' , right ? |
just in case we encounter any more trolls who want us to figure out what types of money they have in their pockets , we have devised an exercise for you to practice with . and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . and they give us two e... | so we have when x is equal to 0 , y is equal to negative 1 . so when x is equal to 0 , y is equal to negative 1 . and the slope is 3/5 . | how do you arrive at ( -1 , 8 ) from 0,9 based on y = x + 9 ( i thought that since `` x '' was equal to `` 1/1 '' , one would need to move once upwards and once to the right of { 0 , 9 } ) ? |
just in case we encounter any more trolls who want us to figure out what types of money they have in their pockets , we have devised an exercise for you to practice with . and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . and they give us two e... | when x is equal to 5 , 7/5 times 5 is 7 minus 5 is 2 . so i think we 've properly graphed this top one . let 's try this bottom one right over here . so we have when x is equal to 0 , y is equal to negative 1 . | but what happens when one fraction of the problem goes missing or the numbers are n't there or are way too big for calculating ? |
just in case we encounter any more trolls who want us to figure out what types of money they have in their pockets , we have devised an exercise for you to practice with . and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . and they give us two e... | just in case we encounter any more trolls who want us to figure out what types of money they have in their pockets , we have devised an exercise for you to practice with . and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . | what would be the best set of lessons to clarify how too solve the problems in the exercise '' graphing systems of equations '' ? |
just in case we encounter any more trolls who want us to figure out what types of money they have in their pockets , we have devised an exercise for you to practice with . and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . and they give us two e... | just in case we encounter any more trolls who want us to figure out what types of money they have in their pockets , we have devised an exercise for you to practice with . and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . | the equations in the video are all in standard form ... i want to know how to put equations like this : 2x-4y=16 & 3x+6y=18 , into standard form so i know how to solve it ... could anyone help me ? |
just in case we encounter any more trolls who want us to figure out what types of money they have in their pockets , we have devised an exercise for you to practice with . and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . and they give us two e... | so if it moves 1 , 2 , 3 , 4 , 5 to the right , it 's going to move 7 up . 1 , 2 , 3 , 4 , 5 , 6 , 7 . so it 'll get right over there . | wich of the following is a solution to the equation c + ( 4-3c ) - 2 + 0 ? |
just in case we encounter any more trolls who want us to figure out what types of money they have in their pockets , we have devised an exercise for you to practice with . and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . and they give us two e... | and then we see its slope is 7/5 . this was conveniently placed in slope-intercept form for us . so it 's rise over run . | how would you graph the plots even if its not in slope-intercept form ? |
just in case we encounter any more trolls who want us to figure out what types of money they have in their pockets , we have devised an exercise for you to practice with . and this is to solve systems of equations visually . so they say right over here , graph this system of equations and solve . and they give us two e... | this was conveniently placed in slope-intercept form for us . so it 's rise over run . so for every time it moves 5 to the right it 's , going to move seven up . | what is rise over run ? |
so in the last video , i talked about 3-dimensional vector fields . and i finished things off with a sort of identity function example where at an input point x , y , z the output vector is also x , y , z . and here , i want to go through a slightly more intricate example . so i 'll go ahead and get rid of this vector... | so let 's focus in on that first quadrant and try to look at what 's going on . so , you see like this vector here applies , this vector . and all of them generally point upwards , they have a positive z component . | so if i wanted to show gravity as a field could i do something like this : a * [ xz ] [ yz ] [ zz ] where every vector goes towards the origin and a represents the gravity relative to earth ? |
so in the last video , i talked about 3-dimensional vector fields . and i finished things off with a sort of identity function example where at an input point x , y , z the output vector is also x , y , z . and here , i want to go through a slightly more intricate example . so i 'll go ahead and get rid of this vector... | and just like with 2-dimensional vector fields , the kind of neat thing to do is imagine that this represents a fluid flow . so you imagine like maybe air around you , flowing in towards the origin here , flowing out away from the origin there , it would kind of be rotating around here , and later on in multi-variable ... | cold you share on , what is the software that is being used for the visualizations shown above ? |
so in the last video , i talked about 3-dimensional vector fields . and i finished things off with a sort of identity function example where at an input point x , y , z the output vector is also x , y , z . and here , i want to go through a slightly more intricate example . so i 'll go ahead and get rid of this vector... | so in the last video , i talked about 3-dimensional vector fields . and i finished things off with a sort of identity function example where at an input point x , y , z the output vector is also x , y , z . | can you tell me what programme you use to plot vector fields ? |
let 's find the equation for the regression line that best fits this . where the fit minimizes the squared distance to each of the points . and then let 's actually calculate how good of a fit it is using an r squared . and we might have to do that in the next video , depending on time . so just as a reminder , the lin... | negative 20 over 84 , which is the same thing , they 're both divisible by 4 , the numerator divided by 4 is negative 5 , over 21 . so our regression line is going to be y is equal to 41/42 x minus 5/21 . and 5/21 is a little bit less than 1/4 . | why do we know that the average x and average y will always be on the regression line ? |
let 's find the equation for the regression line that best fits this . where the fit minimizes the squared distance to each of the points . and then let 's actually calculate how good of a fit it is using an r squared . and we might have to do that in the next video , depending on time . so just as a reminder , the lin... | and 5/21 is a little bit less than 1/4 . 5/20 would be 1/4 . we made the denominator a little bit bigger , so it 's going to be a little bit less than negative 1/4 . | how would you do a regression for categorical data ? |
let 's find the equation for the regression line that best fits this . where the fit minimizes the squared distance to each of the points . and then let 's actually calculate how good of a fit it is using an r squared . and we might have to do that in the next video , depending on time . so just as a reminder , the lin... | let 's find the equation for the regression line that best fits this . where the fit minimizes the squared distance to each of the points . | is the formula for the slope/intercept of the line of best fit to be memorized ? |
let 's find the equation for the regression line that best fits this . where the fit minimizes the squared distance to each of the points . and then let 's actually calculate how good of a fit it is using an r squared . and we might have to do that in the next video , depending on time . so just as a reminder , the lin... | let 's find the equation for the regression line that best fits this . where the fit minimizes the squared distance to each of the points . | can i have a real life example where a regression line can be drawn with respect to population ? |
let 's find the equation for the regression line that best fits this . where the fit minimizes the squared distance to each of the points . and then let 's actually calculate how good of a fit it is using an r squared . and we might have to do that in the next video , depending on time . so just as a reminder , the lin... | and then the second terms , you 're finding the means of the individual components and then multiplying . mean of x , times mean of y , mean of x times mean of x . so hopefully maybe that helps . | if the x values are dates or years instead of numbers , what values do i use for x ? |
let 's find the equation for the regression line that best fits this . where the fit minimizes the squared distance to each of the points . and then let 's actually calculate how good of a fit it is using an r squared . and we might have to do that in the next video , depending on time . so just as a reminder , the lin... | let 's find the equation for the regression line that best fits this . where the fit minimizes the squared distance to each of the points . | would the epuation m= y2 - y1 over x2 - x1 help me find the line of best fit ? |
let 's find the equation for the regression line that best fits this . where the fit minimizes the squared distance to each of the points . and then let 's actually calculate how good of a fit it is using an r squared . and we might have to do that in the next video , depending on time . so just as a reminder , the lin... | let 's find the equation for the regression line that best fits this . where the fit minimizes the squared distance to each of the points . | why is there nothing about the median median regression line ? |
let 's find the equation for the regression line that best fits this . where the fit minimizes the squared distance to each of the points . and then let 's actually calculate how good of a fit it is using an r squared . and we might have to do that in the next video , depending on time . so just as a reminder , the lin... | and we can do that because we know that the point mean of x comma mean of y is going to be on this regression live . so what 's calculate them . and you 'll see , in the last example we did three points . | how can i calculate the ( ? |
let 's find the equation for the regression line that best fits this . where the fit minimizes the squared distance to each of the points . and then let 's actually calculate how good of a fit it is using an r squared . and we might have to do that in the next video , depending on time . so just as a reminder , the lin... | so what 's calculate them . and you 'll see , in the last example we did three points . we only have four points here . but the computations get more and more intense . | equidistant point , relative to all points in the graph / system ? |
let 's find the equation for the regression line that best fits this . where the fit minimizes the squared distance to each of the points . and then let 's actually calculate how good of a fit it is using an r squared . and we might have to do that in the next video , depending on time . so just as a reminder , the lin... | and then the second terms , you 're finding the means of the individual components and then multiplying . mean of x , times mean of y , mean of x times mean of x . so hopefully maybe that helps . | to find out m why do we use the mean of x square minus x square in the denominator ? |
let 's find the equation for the regression line that best fits this . where the fit minimizes the squared distance to each of the points . and then let 's actually calculate how good of a fit it is using an r squared . and we might have to do that in the next video , depending on time . so just as a reminder , the lin... | 42/42 would be exactly 1 . so our regression slope is a little bit less than 1 . and then our regression y-intercept , b , is going to be equal to the mean of the y . | do we have word problems and quadratic regression ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | now to just get an l on the left-hand side we can divide both sides by three , and if you divide both sides by three , you 're not going to change the sign , you 're not going to change the inequality . if you 're dividing by a negative number , you would swap the inequality . greater than or equal to would turn into l... | when do you have to swap the sign ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? | where did the 3l come from ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? | with increase in pressure , the viscosity of liquid increases but viscosity of water decrease why ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | now to just get an l on the left-hand side we can divide both sides by three , and if you divide both sides by three , you 're not going to change the sign , you 're not going to change the inequality . if you 're dividing by a negative number , you would swap the inequality . greater than or equal to would turn into l... | if you multiply by a negative number will the sign flip ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | this six and this six are going to add to zero , and then we are going to be left with , we are going to be left with three l on the left hand side is greater than or equal to eight plus six is 14 . now to just get an l on the left-hand side we can divide both sides by three , and if you divide both sides by three , yo... | why does it have to be negative so you can change the inequality ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? | why manhole covers are round in shape ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | now to just get an l on the left-hand side we can divide both sides by three , and if you divide both sides by three , you 're not going to change the sign , you 're not going to change the inequality . if you 're dividing by a negative number , you would swap the inequality . greater than or equal to would turn into l... | why should we swap the inequality ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | this six and this six are going to add to zero , and then we are going to be left with , we are going to be left with three l on the left hand side is greater than or equal to eight plus six is 14 . now to just get an l on the left-hand side we can divide both sides by three , and if you divide both sides by three , yo... | why did n't you change the sign ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? | what are possible simple mistakes that can be made on this type of problem ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? | do you have a video where the linear inequalities is represented on a line ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? | what does sat stand for ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? | do you switch the signs ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? | how come u ca n't take away 8 ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | if you 're dividing by a negative number , you would swap the inequality . greater than or equal to would turn into less than or equal to , but we 're dividing by a positive number , so this is going to be l is greater than or equal to 14 over three which is that choice right there . | so you treat the great than sign as an equal sign ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? | where can i find specific sat heart of algebra problems on inequalities in khan academy to practice ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | this six and this six are going to add to zero , and then we are going to be left with , we are going to be left with three l on the left hand side is greater than or equal to eight plus six is 14 . now to just get an l on the left-hand side we can divide both sides by three , and if you divide both sides by three , yo... | when does the inequality sign change ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? | what is 7squared to three ? |
three l minus six is greater than or equal to eight . which of the following best describes the solutions to the inequality shown above ? so it 's three times l minus six is greater than or equal to eight . well all of these choices , these are in terms of l. they 've said l on one side is greater than or equal to , a... | now to just get an l on the left-hand side we can divide both sides by three , and if you divide both sides by three , you 're not going to change the sign , you 're not going to change the inequality . if you 're dividing by a negative number , you would swap the inequality . greater than or equal to would turn into l... | so you do n't change the inequality sign when you are multiplying by negative , just when dividing right ? |
we 've got a few more details today from geithner and the obama administration about their plan for saving the banks . so i figured that this is a good time to analyze what they 're proposing , and see if we can come to any conclusions . so , just to simplify the original problem , you have some bank . maybe it 's citi... | the treasury made a direct equity investment of $ 7 . and private investors make a direct investment of $ 7 . and then this entity can then go and buy these assets . | can someone tell me why fed can make non-recurring loans to private investors ? |
we 've got a few more details today from geithner and the obama administration about their plan for saving the banks . so i figured that this is a good time to analyze what they 're proposing , and see if we can come to any conclusions . so , just to simplify the original problem , you have some bank . maybe it 's citi... | so let me write that down , because it is important . this is what banks want . greater than 60 cents on the dollar . | my question is , why should the taxpayer be subsidizing banks ? |
we 've got a few more details today from geithner and the obama administration about their plan for saving the banks . so i figured that this is a good time to analyze what they 're proposing , and see if we can come to any conclusions . so , just to simplify the original problem , you have some bank . maybe it 's citi... | the treasury will contribute another -- let me make another box -- will kind of match that investment by the private investors . so the treasury will contribute another $ 7 . and then the fed is going to lend the balance . | what is the role of the treasury ? |
we 've got a few more details today from geithner and the obama administration about their plan for saving the banks . so i figured that this is a good time to analyze what they 're proposing , and see if we can come to any conclusions . so , just to simplify the original problem , you have some bank . maybe it 's citi... | but private investors will contribute , say , $ 7 . this is from private investors . the treasury will contribute another -- let me make another box -- will kind of match that investment by the private investors . so the treasury will contribute another $ 7 . | is treasury acting sort of like another private investor here trying to make a profit , at the expense of the fed ? |
we 've got a few more details today from geithner and the obama administration about their plan for saving the banks . so i figured that this is a good time to analyze what they 're proposing , and see if we can come to any conclusions . so , just to simplify the original problem , you have some bank . maybe it 's citi... | and so , these toxic assets are , you could say , clogging up the system . because the banks , i wo n't say that they ca n't sell them . it 's just they 're not willing to sell them . | could n't the fed use that money to help bail out the depository banks that are in trouble instead of using tax payer money ? |
we 've got a few more details today from geithner and the obama administration about their plan for saving the banks . so i figured that this is a good time to analyze what they 're proposing , and see if we can come to any conclusions . so , just to simplify the original problem , you have some bank . maybe it 's citi... | but if they really thought that the value was closer to 30 than to 60 , then the question is , why would they participate at all ? i mean , if you know you 're going to lose money , you should n't do it to begin with . and i realize i 've run out of time . | how does tax payer money factor into all of this ? |
we 've got a few more details today from geithner and the obama administration about their plan for saving the banks . so i figured that this is a good time to analyze what they 're proposing , and see if we can come to any conclusions . so , just to simplify the original problem , you have some bank . maybe it 's citi... | and then they borrowed the remaining $ 60 to get that asset . and now of course , this asset right here is backed by toxic mortgages . and it 's the equity tranche on these mortgages . | maybe this is not the place to ask this question , but.. where these toxic mortgages come from ? |
we 've got a few more details today from geithner and the obama administration about their plan for saving the banks . so i figured that this is a good time to analyze what they 're proposing , and see if we can come to any conclusions . so , just to simplify the original problem , you have some bank . maybe it 's citi... | remember , we had $ 40 left over in cash , just based on the way i had originally set it up . you owe $ 86 to the fed , the federal reserve , which is officially separate from the treasury , separate entity . and then the equity is split between the treasury and the private investor . | what are the fundamental differences between the federal reserve and treasury that would benefit or result in the federal reserve lending more money to purchase the toxic financial asset from the bank compared to the department of treasury 8 ? |
we 've got a few more details today from geithner and the obama administration about their plan for saving the banks . so i figured that this is a good time to analyze what they 're proposing , and see if we can come to any conclusions . so , just to simplify the original problem , you have some bank . maybe it 's citi... | so then they 'll have $ 100 of cash . so then we 'll have the toxic asset sitting here . and you might say , hey sal , that 's crazy . | what is a toxic asset ? |
we 've got a few more details today from geithner and the obama administration about their plan for saving the banks . so i figured that this is a good time to analyze what they 're proposing , and see if we can come to any conclusions . so , just to simplify the original problem , you have some bank . maybe it 's citi... | because when you do that , if the market price really is 30 cents on the dollar , and you 're paying 70 cents . let me say , if this tarp 1 . and the government pays 70 cents on the dollar . | and what is tarp 1 ? |
we 've got a few more details today from geithner and the obama administration about their plan for saving the banks . so i figured that this is a good time to analyze what they 're proposing , and see if we can come to any conclusions . so , just to simplify the original problem , you have some bank . maybe it 's citi... | this loan by the federal reserve is a non-recourse loan . which means that , if for whatever reason this entity ca n't pay back the loan , the lender -- which is in this case the fed -- ca n't go after the equity holders . all the lender can do is take the asset . | why sal is saying `` ca n't go after equity holders '' ? |
we 've got a few more details today from geithner and the obama administration about their plan for saving the banks . so i figured that this is a good time to analyze what they 're proposing , and see if we can come to any conclusions . so , just to simplify the original problem , you have some bank . maybe it 's citi... | remember , we had $ 40 left over in cash , just based on the way i had originally set it up . you owe $ 86 to the fed , the federal reserve , which is officially separate from the treasury , separate entity . and then the equity is split between the treasury and the private investor . | can someone please explain what is the difference between the `` treasury '' and the `` federal reserve '' ? |
we 've got a few more details today from geithner and the obama administration about their plan for saving the banks . so i figured that this is a good time to analyze what they 're proposing , and see if we can come to any conclusions . so , just to simplify the original problem , you have some bank . maybe it 's citi... | and the way they 're suggesting they do that , is that let 's say a private investor -- and these are numbers that i 've been reading in some of the newspaper reports , and the numbers might change over time because they do tend to . but private investors will contribute , say , $ 7 . this is from private investors . t... | also , why is the treasury one of the investors in these special entities , would it not be possible with only the fed and private investors ? |
we 've got a few more details today from geithner and the obama administration about their plan for saving the banks . so i figured that this is a good time to analyze what they 're proposing , and see if we can come to any conclusions . so , just to simplify the original problem , you have some bank . maybe it 's citi... | so then they 'll have $ 100 of cash . so then we 'll have the toxic asset sitting here . and you might say , hey sal , that 's crazy . | in your video , whether investors benefit or not depends upon the value of the toxic asset , does n't it ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | but roughly , when we talk about the crust , we 're talking about something that 's 30 to 60 kilometers deep . so 30 to 60 kilometers deep . so if you are on a continent , which i 'm assuming you are , and you dig for 20 kilometers , you will still be in the crust . | how deep into the earth are we able to penetrate with current technology ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | and both the -- the entire core , both the outer core and the inner core , is mainly nickel and iron . think about when the earth was forming . what happens is when this whole earth was super hot and was kind of in a fluid state , the heavier elements were allowed to sink down , when everything was fluid . | how do scientists know exactly how thick the different parts of the earth are ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | i do n't want it to be that thick . so let me draw the oceanic crust -- is thinner than the continental crust , which i 'm trying to depict right over here . so this right over here is oceanic crust , and up here is continental crust . and the thickness , or how deep you can go and still be in crust , it depends on whe... | is the crust the same thing as the lithosphere ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | so the deeper you go , the more pressure you get . now , when we get even deeper than that , we get to the core , and the core is divided between the outer core and the inner core . so the outer core and then , of course , you have the inner core . | is it possible for a planet to be so massive that a black hole forms as it 's core ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | and the pressure is low enough for it to still be able to kind of move past itself , to still be somewhat fluid . but then once you get even deeper , into the lower mantle , you have higher pressure . and so it 's still fluid , but it 's less fluid . | how can that be possible , when the outer core receives even more pressure than the lower mantle ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | they 're kind of jam-packed . and so the inner core , because of the high pressure , despite the high temperature , is solid . it 's solid . so the difference here is actually a mechanical one between the outer core and the inner core . | why do inner parts of the earth have more pressure so they turn into a solid ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | and we learned in previous videos that the combination of the solid part of the upper mantle and the crust combined , we call that the lithosphere . and when we talk about the lithosphere , we 're not talking about the mechanical makeup . we 're not talking about what 's solid and what 's not solid . | why is n't the lithosphere in the category of mechanical makeup ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | and we learned in previous videos that the combination of the solid part of the upper mantle and the crust combined , we call that the lithosphere . and when we talk about the lithosphere , we 're not talking about the mechanical makeup . we 're not talking about what 's solid and what 's not solid . | correct me if i 'm wrong but is n't the lithosphere considered one of three mechanical layers all of which are categorized by the their mechanical behaviors ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | and both the -- the entire core , both the outer core and the inner core , is mainly nickel and iron . think about when the earth was forming . what happens is when this whole earth was super hot and was kind of in a fluid state , the heavier elements were allowed to sink down , when everything was fluid . | any body know how far humans have drilled down into the earth ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | so let 's talk about the mantle now . so the mantle , layer like this . and once again , this is not to scale because the crust , we 're talking about 30 to 60 kilometers . | how was the ozon layer made ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | we 're not talking about what 's solid and what 's not solid . so this is the lithosphere . you go a little bit deeper . | how deep is the lithosphere ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | the number i have is about 1,200 kilometers thick . and both the -- the entire core , both the outer core and the inner core , is mainly nickel and iron . think about when the earth was forming . | but since that 's the case , how come the earth has an iron core , much less , how does mercury have an iron core ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | every molecule here wants to go downward because of gravity . so it 's applying pressure downward . so the deeper you go , the more pressure you get . | is the pressure under water related to the pressure in the mantle ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | i do n't want it to be that thick . so let me draw the oceanic crust -- is thinner than the continental crust , which i 'm trying to depict right over here . so this right over here is oceanic crust , and up here is continental crust . and the thickness , or how deep you can go and still be in crust , it depends on whe... | did sal intentionally make it look the continental crust is subducted underneath the oceanic crust or was that unintentionally done ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | so the inner core , even though the temperature is really , really , really hot , the pressure is so big that the molecules ca n't flow past each other . they ca n't be liquid . they 're kind of jam-packed . | should n't the center of the earth ( core ) be liquid because of the heat ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | i do n't want it to be that thick . so let me draw the oceanic crust -- is thinner than the continental crust , which i 'm trying to depict right over here . so this right over here is oceanic crust , and up here is continental crust . and the thickness , or how deep you can go and still be in crust , it depends on whe... | why is anything farther than the crust hotter than the rest of the earth ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . | where does the heat come from ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | you can kind of think of it as kind of a deformable solid , or a plastic solid or a magma . and that 's the asthenosphere . so this area right over here , this area right over here , the liquid part -- actually , i should n't use the word liquid . | in the asthenosphere , is everything that is there a magma or do some materials do not reach melting temperature ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | so this is the lithosphere . you go a little bit deeper . right below the lithosphere , now the temperatures are high enough for -- and i use the word liquid , but that 's not exactly right . | does the friction of the plates rubbing together create static electricity when you go down slides or touch someone that recently did ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | so this area right over here , this area right over here , the liquid part -- actually , i should n't use the word liquid . kind of deformable . it deforms over long periods of time . | is the radioactivity found inside the earth , the same kind of radioactivity from nuclear power plants ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | and both the -- the entire core , both the outer core and the inner core , is mainly nickel and iron . think about when the earth was forming . what happens is when this whole earth was super hot and was kind of in a fluid state , the heavier elements were allowed to sink down , when everything was fluid . | how we fix that poles of earth to be as this is north pole and south pole why we cant choose poles as reverse ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | but roughly , when we talk about the crust , we 're talking about something that 's 30 to 60 kilometers deep . so 30 to 60 kilometers deep . so if you are on a continent , which i 'm assuming you are , and you dig for 20 kilometers , you will still be in the crust . | how do scientists know this stuff if no one has been deep in the earth ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | i do n't want it to be that thick . so let me draw the oceanic crust -- is thinner than the continental crust , which i 'm trying to depict right over here . so this right over here is oceanic crust , and up here is continental crust . and the thickness , or how deep you can go and still be in crust , it depends on whe... | can someone explain the difference between oceanic and continental crust please ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | and both the -- the entire core , both the outer core and the inner core , is mainly nickel and iron . think about when the earth was forming . what happens is when this whole earth was super hot and was kind of in a fluid state , the heavier elements were allowed to sink down , when everything was fluid . | what is the deepest level in the earth that anyone has ever been to ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . | not in a submarine or in the marinara trench , but digging or mining ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | i do n't want it to be that thick . so let me draw the oceanic crust -- is thinner than the continental crust , which i 'm trying to depict right over here . so this right over here is oceanic crust , and up here is continental crust . and the thickness , or how deep you can go and still be in crust , it depends on whe... | what is crust made up of ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . | where the lava erupted out of volcanoes comes from ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | and both the -- the entire core , both the outer core and the inner core , is mainly nickel and iron . think about when the earth was forming . what happens is when this whole earth was super hot and was kind of in a fluid state , the heavier elements were allowed to sink down , when everything was fluid . | so was the earth ever just one big plate ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | and that 's a little over 1,000 kilometers thick . so this is the inner core . the number i have is about 1,200 kilometers thick . | further inquiry : a hypothetical 100-kg mass of metal at the exact center of the inner core ... is it pulled equally in all directions outward toward the surface of the earth since all of the mass that it would be pulled toward is surrounding it ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | what 's different about them is at the outer core , you have temperatures high enough that nickel and iron can melt . but the pressures are low enough that they can still be in a fluid state . so this is our liquid outer core . | in other words is there a between state to speak of ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | so that 's why people kind of consider this in kind of a more traditional liquid state . but as you get deeper and deeper and deeper , the pressure becomes so huge as you get to the inner core -- remember all of the weight of all of the rock above you , of these thousands of miles of rock above you , is all pushing dow... | is size the only factor in determining what becomes a planet and what becomes a star ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | and both the -- the entire core , both the outer core and the inner core , is mainly nickel and iron . think about when the earth was forming . what happens is when this whole earth was super hot and was kind of in a fluid state , the heavier elements were allowed to sink down , when everything was fluid . | so how far have we drilled into the earth , and how soon do you think we can reach the mantle ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | and both the -- the entire core , both the outer core and the inner core , is mainly nickel and iron . think about when the earth was forming . what happens is when this whole earth was super hot and was kind of in a fluid state , the heavier elements were allowed to sink down , when everything was fluid . | formation of the earth 's layered structure resulted from ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | so i would have to draw it even narrower than the way i 've drawn it over here . and the mantle itself can be subdivided into the upper mantle and the lower mantle . so let me draw this division right over here . | if the mantle is so deep , then why do volcanoes happen ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | it deforms over long periods of time . but it is more fluid than what we normally associate with rock magma , would be a good way to think about it . that 's what we call the asthenosphere . | how does magma come through ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | you can kind of think of it as kind of a deformable solid , or a plastic solid or a magma . and that 's the asthenosphere . so this area right over here , this area right over here , the liquid part -- actually , i should n't use the word liquid . | what is below the asthenosphere ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | and that 's a little over 1,000 kilometers thick . so this is the inner core . the number i have is about 1,200 kilometers thick . | does gravity act in the inner core as it does on the surface ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | so this is the lithosphere . you go a little bit deeper . right below the lithosphere , now the temperatures are high enough for -- and i use the word liquid , but that 's not exactly right . | why does the intensity of the gravitational force increase as we go deeper down the earth ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | so i would have to draw it even narrower than the way i 've drawn it over here . and the mantle itself can be subdivided into the upper mantle and the lower mantle . so let me draw this division right over here . | why is the lower mantle thicker than the outer mantle ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | so let 's say that this is the crust up here . and i 'm going to make the continental crust a little bit thicker . so let 's say that that is continental crust and this is continental crust . | how can there be more fluid in the area that is a little bit cooler than the area in the earths crust that is a lot hotter ? |
what i want to do in this video is really make some clarifications and go a little bit more in detail about the different layers of the earth . so let me draw a cross-section of the earth over here . and i 'll try to do it . i wo n't be able to do it perfectly to scale , but i 'll try to do a little bit better job at g... | and so the inner core , because of the high pressure , despite the high temperature , is solid . it 's solid . so the difference here is actually a mechanical one between the outer core and the inner core . | are the layers of the earth round or solid ? |
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