content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Question regarding the equation of an ellipsoid
January 11th 2010, 05:08 PM #1
Ellipsoid: $\frac{x^2}{a^2}+\frac{y^2}{b^2}+\frac{z^2}{c^2}=1$
Quick question. I am to take a horizontal cross-section of this shape and use it to find the volume of the entire shape by the slicing method. Area of an ellipse is giv... | 4 | [
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-0.05200... | 3,000 | 3000 | |
Algebra Functions
Posted by natalie on Thursday, January 4, 2007 at 2:27pm.
I cannot for the life of me remember how to do this- Find the vertex of the graphs of the functions:
Function #1: y=(x-4)(x+2)
AND
Function #2: y=2x^2-4x+1
Can someone help me get it PLz!
OK - to find the vertex of these functions you mus... | 4 | [
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Sam Loyd's Banana Puzzle - Solution
The Puzzle:
How it is that when I buy yellow bananas at three shillings a bunch and the same number of red ones at four shillings a bunch I would get two more bunches for the same amount if I divided the money
evenly between the yellow and red bananas?
Our Solution:
The amount of... | 4 | [
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0.0249023437... | 3,002 | 3002 | |
Radius of cylinder
September 18th 2012, 03:41 AM #1
Newbie
Joined
Sep 2011
Posts
5
Radius of cylinder
The radius of a cylinder is quadrupled, determine the percent the volume increase.
Let the height twice as large as the radius.
Assume that the cylinder grows without changing shape.
V=pi*r^2... | 4 | [
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assessment test in a few days in some help!
April 29th 2009, 12:36 PM
SMl
assessment test in a few days in some help!
Need Help! Would like To know How to solve these..... Would like to know step by step(formula)
Numerical Skills/Prealgebra
13. Adam tried to compute the average of his 7 test scores. He... | 4 | [
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Quadratics
December 5th 2008, 11:31 PM #1
Member
Joined
Sep 2008
Posts
114
Quadratics
A straight length of wire is 20 cm long. It is bent at right angles to form the two shorter sides of a right angled traignle. If hte triangle's area is 30cm^2, find:
i. the length of the hypotenuse
ii. the trian... | 4 | [
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Courses/CS 332F/Recursion engines
Running a recursive function on a recursion engine
factorial is the prototypical recursive function.
factorial n
| (n==0) = 1
| otherwise = n * (factorial (n-1))
Like many recursive functions factorial has the following form.
recursiveFunction x
| termCond x = termFn x
| ... | 5 | [
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double integral
May 4th 2010, 06:17 PM
Dr Zoidburg
double integral
I = ∫∫R (x + y)dA where R is the region bounded by the curve y = x² and the line y = 1.
(a) Calculate I by integrating first in y and then in x.
(b) Calculate I by integrating first in x and then in y.
This is what I got for (a): Lim... | 5 | [
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Help with finding Cartesian Equations from Parametric Equations using Chain Rule
September 1st 2007, 05:54 AM
macho_maggot2001
Help with finding Cartesian Equations from Parametric Equations using Chain Rule
Hi!
This is my first post here :)
I have encountered some trouble in my math homework.
A c... | 5 | [
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newton Raphson
October 15th 2007, 09:28 PM #1
Newbie
Joined
Sep 2007
Posts
18
newton Raphson
cosx = 1.1x^1.4 (x=>0, radians)
write out the formula for newton raphson metho applied to this equation tabulat successive values of netwon raphson approximation for this equation, with starting solution x =... | 5 | [
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Finding limits
November 28th 2008, 06:26 AM #1
Member
Joined
Oct 2008
From
Melbourne
Posts
166
If I want to find the $\lim_{x\rightarrow 0}\frac {xcosx -sin(x)}{x^2}$, using L'Hopital's rule, also knowing $\lim_{x\rightarrow 0}\frac{sinx}{x}$ is equal to 1, how many times should I
differentiate?
... | 5 | [
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Vector calculus - area
May 5th 2011, 11:34 AM #1
Newbie
Joined
Apr 2011
Posts
13
Vector calculus - area
Hello. I have no clue how to do this one. I don't know what the region looks like. I've tried squaring etc but with no avail.
"A plane region is determined by $y \ge 0$, $y \ge -x$ and $x^2+y^2 \l... | 5 | [
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Math Help
January 3rd 2012, 02:37 AM #1
Newbie
Joined
Dec 2011
Posts
19
Limit
Prove that $\lim_{n \to \infty} \left( \frac{n!}{n^n}\right)^{1 \over n}=\frac{1}{e}$.
I wrote the limit as $\exp{\lim_{n \to \infty} {1 \over n}\ln\left( \frac{n!}{n^n}\right)}$
What should I do next?? Can I use L h... | 5 | [
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Holding over compared to dialing in MOA
Re: Holding over compared to dialing in MOA
W,
First, have you made any angle indicators with the "correction factors" of
(1 - cosine), instead of the cosine or angle, or would you make one?
I've found that adding a flat 4 MOA to what ever my come-up MOA is for an angled shot, ... | 4 | [
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Euler's criterion
May 16th 2009, 01:49 PM #1
Member
Joined
Feb 2009
Posts
103
Euler's criterion
For any integer $n \geq 2$, let $F_n = 2^{2^n}+1$ and let $p | F_n$be any prime.
I can show that $ord_p{2} = 2^{n+1}$, however I'm struggling to answer the rest of the qestion:
1) Using Euler’s crit... | 5 | [
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tions
This is an old revision of the document!
Functions
SCaVis can be used to evaluate, plot, simplify functions. There are several approaches to work with parametric or non-parametric functions using SCaVis Java API:
• User 2D/3D function plotter from SCaVis IDE (see the “Tools” menu)
• Simplify and plot func... | 5 | [
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0.042236328125,... | 3,015 | 3015 | |
Math Help
October 18th 2007, 08:08 PM #1
Banned
Joined
Aug 2007
Posts
52
asymptotes
A family of functions is given by
Find values of a and b so that the function r has a local minimum at the point (5 , 9)
Find the vertical asymptotes of r with the values of a and b found in part (a).
ok ... | 5 | [
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Gr 12. Vector Question Involving Dot Product of Two Vectors(Part 2)
February 17th 2009, 02:46 PM #1
Junior Member
Joined
Feb 2009
Posts
27
Gr 12. Vector Question Involving Dot Product of Two Vectors(Part 2)
I don't know if I'm being abusive posting another thread so let me know if there is a limit on how... | 4 | [
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Hagen-Poiseuille Equation
211862
132
This is the free portion of the full article. The full article is available to licensed users only.
How do I get access?
Hagen-Poiseuille Equation
n (Poiseuille equation)
The equation of steady, laminar,
Newtonian flow
through circular tubes:
where
Q
= the volumetric flow ... | 4 | [
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Archimedes' principle!
November 14th 2009, 10:50 PM #1
Hey guys, it's me again. I came across a pre-calculus problem in some homework and can't finish it. The problem gives you Archimedes' principle:
[IMG]file:///C:/Users/Andy/AppData/Local/Temp/msohtmlclip1/01/clip_image002.gif[/IMG]
(π/3)(3rh2 – h3)dL = ... | 5 | [
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Derivative of function f(x)=x|x|
For the function f(x)=x|x|, show that f'(0) exists. wht is the value?
$f(x)= |x| = x, x\geq 0 \implies f'(x)=1$ $f(x)= |x| = -x, x< 0 \implies f'(x)=-1$ Maybe use the product rule from here?
$|x|$ is not differentiable at $x = 0$, so what makes you think that $x|x|$ is differentiable ... | 4 | [
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Rates and Taxes
This activity allows students to become familiar with percents and taxes. Students learn how to determine the amount of tax a family will pay based on a certain income. This lesson was adapted from
an article by Warren W. Esty, which appeared in the May 1992 edition of Mathematics Teacher.
Benjamin Fr... | 5 | [
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Engineering antenna radiation patterns via quasi-conformal mappings
« journal navigation
Engineering antenna radiation patterns via quasi-conformal mappings
Optics Express, Vol. 19, Issue 24, pp. 23743-23750 (2011)
http://dx.doi.org/10.1364/OE.19.023743
Abstract
We use a combination of conformal and quasi-conforma... | 4 | [
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maximizing profit
November 28th 2008, 02:19 PM
xSMUxCHEERLEADINGx
maximizing profit
Use calculus to find the production level x that will maximize profit if the price (also known as demand) is p(x)=12-(x/500) and the cost is C(x)=680+4x+0.01x^2
:(
November 29th 2008, 10:33 AM
CaptainBlack
Quote:
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Claim of Proof to Four-Color Theorem
By G. Spencer-Brown
To the Editors of Nature, 4 Little Essex Street, London W C 2 England
copies to other interested journals
From G Spencer-Brown, 2 St Peters St, Castle Hill, Cambridge England
17 December 1976
Sirs
The recent announcement by two American computer scient... | 4 | [
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binomal probability
November 7th 2007, 12:27 AM
0123
binomal probability
probability to be fined= 0.22
suppose the employee irregularly parks on 7 deliveries, what is probab that is not fined??
Please help now!
November 7th 2007, 10:19 AM
slevvio
Let X be the number of times the employee is not ... | 4 | [
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What the capacitor Current formula?, For 1 KVAr how amps
its required? fo
What the capacitor Current formula?, For 1 KVAr how amps
Question its required? for using the KVAr for boosting the PF Design
Calculation.( Eg: for 30 KVAr required how many KW?)
Question Submitted By :: Electrical-Engineer... | 4 | [
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Information Theory
Information Theory—part 1: overview of key ideas
Appendix 1—Yockey’s inappropriate use of protein probabilities
Yockey uses the Shannon–MacMillan–Breitmann Theorem to calculate the number of sequences of length N symbols, having an average entropy H:
Nr. of sequences = 2^NH (3).
This equation neg... | 5 | [
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-0.0179443359375,
-0.07763671875,
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0.08642578125,
-0.006744384765625,
-0.006439208984375,
-0.0294189453125,
0.0172119140625,
0.009765625,
-0.05078125,
-0.0076904296875,
-0.01062011718... | 3,027 | 3027 | |
How to show this sequence converges
October 30th 2009, 03:07 PM
paupsers
How to show this sequence converges
Prove:
The sequence $b_n=1+2x+3x^2+...+nx^{n-1}, |x|<1$ converges to $(1-x)^{-2}$
I don't even know what method to use to show:
1. that this converges, and
2. that it converges to that v... | 5 | [
-0.034423828125,
-0.02490234375,
0.000827789306640625,
0.068359375,
-0.0274658203125,
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-0.018310546875,
0.0111... | 3,028 | 3028 | |
How should I have solved this?
January 19th 2011, 07:45 AM #1
Newbie
Joined
Sep 2009
From
North West England
Posts
24
How should I have solved this?
So just got my exam and there was this question on it that I just didn't know where to start, wondered if any of you could explain to me how it should h... | 4 | [
-0.0284423828125,
0.09716796875,
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... | 3,029 | 3029 | |
convergence or divergence of series
September 25th 2012, 11:36 AM
prasum
convergence or divergence of series
examine the convergence or divergence of (summation) (log(base n) n!)/(n^3)
can we estimate n! with the help of stirlings formula and then do the question
September 25th 2012, 12:09 PM
TheEmptySet
... | 5 | [
-0.019287109375,
-0.1181640625,
-0.0859375,
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... | 3,030 | 3030 | |
factoring to find intervals of a function...
June 14th 2011, 07:04 AM #1
Junior Member
Joined
Feb 2011
From
Canada
Posts
27
factoring to find intervals of a function...
I have this function : $f(x)=x^3-x^2+4x-3$
I need to find the intervals of increase and decrease so i have to factor the first ... | 4 | [
0.0263671875,
-0.033935546875,
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0.0240478515625,
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0.040283203125,
0.057373046875,
-0.01031494140625,
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0.039550781... | 3,031 | 3031 | |
Prove the value of the infinite series.
June 19th 2008, 04:08 PM #1
Junior Member
Joined
Jun 2008
Posts
54
Prove the value of the infinite series.
Prove that
$<br /> 1 + \frac{3}{4} + \frac{3*5}{4*8} + \frac{3*5*7}{4*8*12} + \frac{3*5*7*9}{4*8*12*16} + ... = \sqrt{8}$
Also find the sigma (summa... | 5 | [
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0.012084960... | 3,032 | 3032 | |
Distributed gain in plasmonic reflectors and its use for terahertz generation
« journal navigation
Distributed gain in plasmonic reflectors and its use for terahertz generation
Optics Express, Vol. 20, Issue 18, pp. 19618-19627 (2012)
http://dx.doi.org/10.1364/OE.20.019618
Abstract
Semiconductor plasmons have pote... | 4 | [
-0.0294189453125,
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-0.0859375,
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0.0281982421875,
0.0223388671875... | 3,033 | 3033 | |
Basis
May 21st 2009, 10:29 PM
Roam
Basis
Hi!
I don't understand how we can answer the following question.
How do we: extend the linearly independent set {(1,1,1,1,1),(1,2,3,4,5)} to form a basis for $R^5$ ?
Any help is appreciated.
May 21st 2009, 11:28 PM
scorpion007
Find 3 more linearly in... | 5 | [
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0.03... | 3,034 | 3034 | |
limit question
February 11th 2009, 04:05 PM #1
Junior Member
Joined
Jan 2009
Posts
36
limit question
i know the lim as x approaches 1 of $\frac{\sqrt{x+3}-\sqrt{3x+1}}{x-1}=-\frac{1}{2}$
however i don't know the steps to get there. Can someone help he? Thanks
$\frac{\sqrt{x+3}-\sqrt{3x+1}}{x-1}... | 4 | [
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-0.019775390625,
-0.02514648437... | 3,035 | 3035 | |
Algebra problem
January 12th 2010, 01:08 PM #1
Newbie
Joined
Dec 2009
Posts
19
Algebra problem
I would appreciate if you can solve this problem. thanks.
What is the greatest integer value of x such that (X^2 + 2X + 5)/(x - 3) is an integer?
hmmmm ok so lets see if i got this right...
In or... | 4 | [
-0.05322265625,
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0.048828125,
-0.00070953369140625,
-0.00848388671875,
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... | 3,036 | 3036 | |
SparkNotes
Elementary Row Operations
We can perform three elementary row operations on matrices:
• Multiplying a row by a constant.
• Switching two rows.
• Adding a constant times a row to another row.
Examples:
• Multiplying a row by a constant:
• Switching two rows:
• Adding a constant times a ... | 4 | [
-0.07861328125,
0.0458984375,
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0.060791015625,
-0.12158203125,
0.112... | 3,037 | 3037 | |
Shortest distance from point to plane
October 13th 2011, 04:49 PM #1
Newbie
Joined
Oct 2011
Posts
13
Shortest distance from point to plane
I don't even know where to start on this one.
"Find the shortest distance from the point (1,0,-2) to the plane x+2y+z=4"
Re: Shortest distance from point to pla... | 4 | [
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-0.037841796875... | 3,038 | 3038 | |
Calculating The Cavitation Number
Calculating The Cavitation Number:
The Cavitation Number or Sigma = (Pa + Pd − Pv) / (½ρVa^2)
where:
Pa = atmospheric pressure in pounds per square foot = 2116.8 psf
Pd = water pressure at the propeller hub = ρ × g × (Depth to hub in feet) psf
Pv = water vapor pressure... | 5 | [
0.0004177093505859375,
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-0.07666015625,
... | 3,039 | 3039 | |
Help!! Calculus Problems!
March 25th 2006, 08:01 AM #1
Newbie
Joined
Mar 2006
Posts
3
Help!! Calculus Problems!
Anyone know how to solve the following problems?
1. Integrate
∫(x-1) / (lnx) dx Limit 0≦x≦1
∫(x^Alpha)*lnx dx Limit 0≦x≦1
∫(sin x)^3 / (x^2) dx Limit 0≦x≦∞
∫((sin x )/ ... | 5 | [
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0.01324462890625,
... | 3,040 | 3040 | |
Probability counting excercise
March 8th 2011, 02:27 PM #1
Junior Member
Joined
Feb 2011
Posts
34
Probability counting excercise
Ten cards are drawn randomly from a deck of 52 cards (13 cards of each of the 4 different suits).
Each selected card is put into a pile that depends on what suit the card ... | 4 | [
0.059814453125,
0.06787109375,
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0.033935546875,
-0.006744384765625,
0.0228271484375,
0.04... | 3,041 | 3041 | |
Coded aperture compressive temporal imaging
« journal navigation
Coded aperture compressive temporal imaging
Optics Express, Vol. 21, Issue 9, pp. 10526-10545 (2013)
http://dx.doi.org/10.1364/OE.21.010526
Abstract
We use mechanical translation of a coded aperture for code division multiple access compression of vi... | 4 | [
0.0064697265625,
0.0169677734375,
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-0.06201171875,
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0.016845703125,
-0.04248046875,
-0.078125,
-0.04443359375,
0.03955078125... | 3,042 | 3042 | |
MathGroup Archive: December 2004 [00388]
[Date Index] [Thread Index] [Author Index]
Re: Re: problem getting the area under a parmetric curve
• To: mathgroup at smc.vnet.net
• Subject: [mg52898] Re: [mg52860] Re: problem getting the area... | 5 | [
-0.06201171875,
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-0.0517578125,
-0.1049... | 3,043 | 3043 | |
Hi, new here! Was wondering if I am right, I would
June 26th 2008, 01:56 PM #1
Junior Member
Joined
Jun 2008
Posts
25
I would rather try things out as far as they can go, and then ask for help!
I am having problems on a statistics problem, that goes like this:
Suppose that a random variable X ob... | 4 | [
0.007354736328125,
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0.134765625,
-0.032470703125,
0.045654296875,
0.00457763671875,
0.00775146484375,
... | 3,044 | 3044 | |
Is this correct
Might it help to move the exponential to get a positive power...? . . . . . $P\, +\, 56.5Pe^{-0.73t}\, =\, 230$ . . . . . $P\, +\, \frac{56.5P}{e^{0.73t}}\, =\, 230$ . . . . . $e^{0.73t}P\, +\, 56.5P
\, =\, 230 e^{0.73t}$ . . . . . $56.5P\, =\, 230 e^{0.73t}\, -\, e^{0.73t}P$ . . . . . $56.5P\, =\, \lef... | 4 | [
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0.0625,
-0.021240234375,
... | 3,045 | 3045 | |
Proving the definition of the integral
February 7th 2010, 07:59 AM #1
Member
Joined
Mar 2009
Posts
168
Proving the definition of the integral
Suppose $f \in R[0, \pi]$. Prove that the sequence
$a_{n}=\frac{\pi}{n}\sum f(\frac{k\pi}{n})$
converges to $\int f$.
Note that the sum is from k=1 ... | 4 | [
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... | 3,046 | 3046 | |
partial derivative
March 28th 2006, 11:27 AM
jedoob
partial derivative
Can someone pls tell me what the x partial derivative of:
(25-(x^2)-(y^2))^(1/2) is and how you would go about working it out.
March 28th 2006, 11:36 AM
jedoob
all ok
it's ok - i worked it out.
March 28th 2006, 11:46 AM
TD!
... | 5 | [
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0.020751953125,
0.06884765625,
-0.0125732421875,
-0.064453125,... | 3,047 | 3047 | |
Inequality Proof
Let $a$, $b$, and $c$ be positive real numbers. Prove that $\frac{a^3}{b+c}+\frac{b^3}{c+a}+\frac{c^3}{a+b} \geq \frac{a^2+b^2+c^2}{2}$ Thanks in advance!
By the symmetry we may assume, WLOG, that $a\geq{b}\geq{c}>0$ Then $\frac{a}{b+c}\geq{\frac{b}{a+c}}\geq{\frac{c}{a+b} }>0$ So, by Chebyshev's ineq... | 5 | [
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0.07275390625,
0.... | 3,048 | 3048 | |
Solving differential equations with conditions
November 11th 2012, 10:04 PM
tjsdndnjs
Solving differential equations with conditions
Hello, I have a question xy’ = y ; y = cx; y=pi when x = 2. I have to verify that the given function is a solution to the DE. Also find the c that satisfies the condition.
So ... | 4 | [
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0.012023925... | 3,049 | 3049 | |
Computer Algorithms: Kruskal’s Minimum Spanning Tree
Introduction
One of the two main algorithms in finding the minimum spanning tree algorithms is the algorithm of Kruskal. Before getting into the details, let’s get back to the principles of the minimum spanning
tree.
We have a weighted graph and of all spanning tr... | 5 | [
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0.02... | 3,050 | 3050 | |
Tutorial: Pearson's Chi-square Test for Independence
Ling 300, Fall 2008
What is the Chi-square test for?
The Chi-square test is intended to test how li... | 5 | [
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Real Analysis Help. Series Convergence
November 20th 2008, 01:17 PM
megamet2000
Real Analysis Help. Series Convergence
i would love if someone could help me with 2 problems im having trouble with.
1) Let $a_1, a_2, a_3$, ... be a decreasing sequence of positive numbers. Show that $a_1+a_2+a_3+$... converge... | 5 | [
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-0.05126953125,
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0.0150146484375,
-0.055419921... | 3,052 | 3052 | |
Homework Help
Posted by Trixie T on Friday, April 16, 2010 at 8:47pm.
A radioactive sample contains 3.25 1018 atoms of a nuclide that decays at a rate of 3.4 1013 disintegrations per 26 min.
(a) What percentage of the nuclide will have decayed after 159 d?
%
(b) How many atoms of the nuclide will remain in the samp... | 4 | [
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-0.06884765625,
-0.0659... | 3,053 | 3053 | |
Another counting numbers proof
March 10th 2009, 07:04 PM #1
Member
Joined
Oct 2008
Posts
124
Another counting numbers proof
1) For each counting number n let Sn := "Sigma(sub n) = (n(n+1))/2.
Prove that if n is a counting number, then Sn is true.
(The definition of counting number that we are usi... | 4 | [
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0.06494140625,
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0.11083984375,
0.0164794921875,
-0.0107421875,
-0.09716796875,
-0.00311279296875,
0.052978515625,
-0.0174560546875,
-0.076171875,
0.031494140625,
0.03564453125,
0.0327148... | 3,054 | 3054 | |
Simplify Expression
May 9th 2008, 10:20 AM #1
Member
Joined
Apr 2008
Posts
107
Simplify Expression
sin x / 1 + cos x + cot x
sin^2 x / 1 - cos x
sec^2 x -1 / sec^2 x
Thanks!
Hello,
Please put parenthesis...
I guess the second one is :
$\frac{\sin^2 x}{1- \cos x}$
W... | 4 | [
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0.0625,
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0.04541015625,
0.00408935546875,
-0.0283203125,
0.0693359375,
0.0... | 3,055 | 3055 | |
n-dimensional rotation matrix
Re: n-dimensional rotation matrix
n-dimensional rotation matrix
How do I construct a rotation from an axis and an angle? I've learned Euler's formula for three dimensions but I'm blanking on the high dimension extension.
What's your data in the higher dimensional analogue? In 3 dimensio... | 4 | [
-0.08056640625,
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0.10009765625,
0.... | 3,056 | 3056 | |
length of the given curve
August 29th 2009, 03:06 PM #1
Junior Member
Joined
Oct 2008
Posts
29
length of the given curve
one of my HW problems is to find the arc length of the given curve for $x=t^2, y=(3^{1/2}4/3)t^{3/2}, z=3t, 1 <= t <= 4$
now i have the definite integral that goes from 1 to 4, wi... | 4 | [
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-0... | 3,057 | 3057 | |
Transformation
June 9th 2008, 11:49 AM #1
Transformation
The transformation $T$ from the $z$-plane, where $z = x + iy$, to the w-plane, where...
$w=\frac{z+i}{z}, \ z e 0$
(a) The transformation $T$ maps the points on the line with equation $y=x$ in the $z$-plane, other than $(0, 0)$, to points on a lin... | 5 | [
-0.1357421875,
0.099609375,
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0.0703125,
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0.031005859375,
0.029541015625,
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0.0279541015625,
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-0.12... | 3,058 | 3058 | |
Dimension of the kernal of F, and determining the basis for the image.
April 10th 2012, 07:21 AM
breitling
Dimension of the kernal of F, and determining the basis for the image.
Im struggling with the following Let F: $\P_2(R)$$\rightarrow$$\P_3(R)$ be the linear transformation determined by: F(f)(x)=6 $\int_{0}... | 5 | [
0.01287841796875,
0.001800537109375,
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0.051513671875,
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0.033447265625,
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... | 3,059 | 3059 | |
MATLAB
floor
Rounding down to the next integer
Use only in the MuPAD Notebook Interface.
This functionality does not run in MATLAB.
Syntax
Description
floor rounds a number to the next smaller integer.
For complex arguments, rounding is applied separately to the real and the imaginary parts.
Integers are retur... | 5 | [
-0.04541015625,
-0.00872802734375,
-0.0908203125,
-0.056640625,
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0.07470703125,
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0.01116... | 3,060 | 3060 | |
on
┏━━━━━━━━━━━━━━━━━━━━┓
┃ ┃
┃ appl... | 4 | [
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... | 3,061 | 3061 | |
Diagram and Trig/Pre-Calc prob... really confusing...
March 9th 2013, 02:50 PM #1
Newbie
Joined
Mar 2013
From
US
Posts
1
Diagram and Trig/Pre-Calc prob... really confusing...
At a criminal trial, the witness gave the following testimony: "the defendant was 20 ft from the victim. I was 50 ft from the ... | 4 | [
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-0.0032501220703125,
0.02844238... | 3,062 | 3062 | |
Please help....
August 17th 2006, 02:33 AM #1
Newbie
Joined
Aug 2006
Posts
5
Please help....
Can sumone pls show me how to do this question.
Q.Suppose that f:N->N and g:N->N are defined by f(n)=n^3 and g(n)=n^2 for each natural number n.Show that g o f is not equal to f o g.
dcapdogg
Can sum... | 4 | [
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0.0... | 3,063 | 3063 | |
Great Circle Distance Calculator - Computes the great circle distance between two points on the earth's surface
Notes
A great circle is the intersection of a sphere with a plane passing through the center of the sphere. Arcs of great circles represent the shorest route between two points on the surface of the
sphere. ... | 4 | [
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0.021362304687... | 3,064 | 3064 | |
Population Dynamics
July 26th 2009, 07:56 PM
penney21
Population Dynamics
I'm having some trouble with a Differential Equations Population problem.
Here is the background for the question..
The DE governing a fish pop. P(t) with harvesting proportional to the population is given by:
P'(t)=(b-kP)P-h... | 4 | [
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The Simply-typed Lambda Calculus with Constraints
Here’s the syntax for the simply-typed lambda calculus (STLC):
Here are the typing rules, written in the usual natural deduction style:
It turns out that these rules are not only enough to provide typechecking but also type inference if you feed them into Prolog, tho... | 4 | [
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... | 3,066 | 3066 | |
finding the equation of a straight line
February 15th 2010, 12:02 AM #1
Member
Joined
Jun 2009
Posts
108
finding the equation of a straight line
i'm trying to find the equation of a straight line in y-mx+c from that is parallel to the line with the equation $3x+6y=8, passing through(2,2)$
Write the ... | 4 | [
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0.028686523... | 3,067 | 3067 | |
Least Squares solution
August 7th 2010, 02:43 AM
rebghb
Least Squares solution
Hello everyone!
I was trying to look up the proof for the following:
$AX=\text{proj}_W (b) \Leftrightarrow \, A^t AX=A^t b$
Thanks!
August 7th 2010, 05:07 AM
HallsofIvy
A is a linear transformation from vector spa... | 4 | [
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0.002288818359375,
-0.0... | 3,068 | 3068 | |
Calculus - Related Rate...?
February 5th 2009, 08:08 PM #1
Member
Joined
Apr 2008
Posts
123
Calculus - Related Rate...?
#1 Water is poured into a rectangular box with a square base (4 cm x 4 cm x 12 cm) at a rate of 50 cm^3/min. What rate does the surface of the water rise?
V = h(l^2)
V = 12(l^2... | 5 | [
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0.043... | 3,069 | 3069 | |
Complex Work Problem.. Suggestions ??
June 1st 2012, 10:44 PM #1
Member
Joined
May 2012
From
Arizona
Posts
79
In one half the time Abby can produce three times as much work as Beth. Beth can do in twice the time 1/3 as much work as carol. If carol does a job in one hour , how many hours will it take A... | 4 | [
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0.014... | 3,070 | 3070 | |
Counting the Edges Of Higher-Dimensional Cubes
On first view, a hypercube in the plane can be a confusing pattern of lines. Images of cubes from still higher dimensions become almost kaleidoscopic. One way to appreciate the structure of such
o... | 5 | [
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0.021118164062... | 3,071 | 3071 | |
e
How to calculate definite integrals of a function.
This topic is part of the TCS FREE high school mathematics 'How-to Library', and will help you to calculate definite integrals of a function.
(See the index page for a list of all available ... | 5 | [
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... | 3,072 | 3072 | |
LSI and leveling speed
9th January 2011 #1
LSI and leveling speed
alright, time to stop lurking
firstly could you kindly fill out this spreadsheet?
https://spreadsheets.google.com/ccc?...thkey=CPmlquIN
thank you
so i'm trying to crunch some numbers and figure out leveling speed and its correlat... | 4 | [
-0.031494140625,
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0.051025390625,
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0.03125,
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0.0185546875,
-0.0839843... | 3,073 | 3073 | |
[SOLVED] Use ratio test to determine if series converges or diverges
April 23rd 2010, 06:50 PM #1
Member
Joined
Sep 2008
Posts
144
[SOLVED] Use ratio test to determine if series converges or diverges
$\sum_{n=1}^{\infty}\ \frac{k!}{k^3}$
I'm stuck about half way through
this is what ive done so f... | 4 | [
0.0172119140625,
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0.0234375,
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0.00518798828125,
0.032470703125,
0.0260009765625,
-0.01416015625,
0.014953613... | 3,074 | 3074 | |
milliunits
1. 1
Can anyone provide help with the following med math problem:
Client is admitted to labor and delivery for a trial induction.
Order reads: Begin Pitocin at 2 milliunits per minute and increase by 1 milliunit every 15 minutes until 3 good contractions every 10 minutes.
Available: 500 ... | 4 | [
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0.1103515625,
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0.0439453125,
-0.00089645385... | 3,075 | 3075 | |
Very Weak Signal Reception with Small Magnetic Loop Antenna
Last changes 3 Jan 2009
Very Weak Signal Reception with Small Magnetic Loop Antenna
Chavdar Levkov LZ1AQ
www.lz1aq.signacor.com lz1aq@abv.bg Sofia, Bulgaria
Magnetic and Ferrite rod ante... | 4 | [
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0.03857421875,
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0.0034332275390625... | 3,076 | 3076 | |
Problem with proof by mathematical induction
July 4th 2011, 12:51 PM #1
Newbie
Joined
Jul 2011
From
Australia
Posts
1
Problem with proof by mathematical induction
Hi,
I'm having trouble with this problem:
Use mathematical induction to show that:
$R_{n} : 5^n \geq n^5$ for all $n \geq ... | 5 | [
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0.01556396484375,
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Homework Help
Posted by Juri on Friday, August 3, 2007 at 2:15pm.
Using synthetic division:
x^3 + 4x^2 - 3x - 12 / x^2 - 3
Write it out like a long division problem. x^-3 goes into x^3 + 4x^2 -3x -12x times. This is the first term of the answer. Multiply x by x^2 -3 and write the product under the dividend. That wou... | 4 | [
0.01251220703125,
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0.039794921875,
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0.01324462890625,
0.00384521484375,
0.0157470703125,
0.0177001953125,
-0.07177734375,
... | 3,078 | 3078 | |
Factoring Lesson Plans & Worksheets | Lesson Planet
Factoring Teacher Resources
Find Factoring educational ideas and activities
Showing 1 - 20 of 2,050 resources
Seventh graders explore the concept of divisibility. In this divisibility lesson, 7th graders use divisibility rules to find factors of numbers. Students c... | 4 | [
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0.09033203125,
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0.103515625,
0.028076171875,
0.046875,
0.058837890625,
0.08642578125,
-0.0029144287109375,
0.0301513671875,
-0.07568359375,
0.061523437... | 3,079 | 3079 | |
A probability question with lots of dice: how do I calculate this?
It's been a long time since I scraped through my probability and stats class in college...
There is a time-killing dice game a friend (seems to have) invented:
1. You start with a pool 10 6-sided (standard) dice. The dice are numbered 1-6, and are fa... | 5 | [
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0.025390625,
0.0087890625,
-0.0198974609375,
0.02294921875,
-0.043701171875,
0... | 3,080 | 3080 | |
What is the variance of the division of 2 random variables?
March 22nd 2010, 05:43 PM
floats
What is the variance of the division of 2 random variables?
More specifically, if X and Y are Poisson-distributed, what is the variance of X/Y (assuming that X and Y are independent)?
Thanks!
March 23rd 2010, 01:01... | 5 | [
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... | 3,081 | 3081 | |
Limit Definition
October 30th 2006, 04:16 PM
Fares23
Limit Definition
Need help proving something.
Show using the definition of a limit that lim (as x approaches c) of (x^3)=(c^3) for all c in R.
Thank you in anticipation.
October 30th 2006, 05:34 PM
ThePerfectHacker
Quote:
If $c\geq 0$ then... | 5 | [
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-0.0030670166015625,
0.00738525390625,
0.09130859375,
-0.0169677734375,
0.03417... | 3,082 | 3082 | |
Square root help...
1. http://www.freemathhelp.com/forum/mi...aac435cbae.gif 2. http://www.freemathhelp.com/forum/mi...a155cb9ddd.gif Can you please help me find the square root to these problems? Thanks so much!
Hello, are you supposed to expand the brackets? If so: to #1: The result is a diffrence of squares: (√(2) ... | 4 | [
-0.0517578125,
0.008544921875,
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0.0281982421875,
0.0625,
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0.00439453125,
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0.056884765625,
0.042724609375,
0.04345703125,
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0.0322265625,
... | 3,083 | 3083 | |
Homework Help
Posted by Adam on Tuesday, March 2, 2010 at 11:37pm.
prove
cos squared B- sin squared B= 2cos squared B -1
• calculus - Reiny, Tuesday, March 2, 2010 at 11:40pm
cos^2 B - sin^2 B = 2cos^ B - 1
LS
= cos^2 B - (1 - cos^2 B)
= 2cos^2 B - 1
= RS
• calculus - drwls, Tuesday, March... | 4 | [
-0.049560546875,
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0.076171875,
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Derivative of f(x) = x + sqrt(x)
January 31st 2011, 08:35 PM
joatmon
Derivative of f(x) = x + sqrt(x)
Find f'(x) for the function $f(x) = x + \sqrt{x}$
This is Calc 1, so we have to do this the long way for a little while longer, so I have to use the formula
$f'(x) = \displaystyle \lim_{h\to 0 } \frac{... | 4 | [
0.0380859375,
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0.03759765625,
0.0037078857421875,
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0.00531005859375,
0.03... | 3,085 | 3085 | |
Completing The SquareAlgebraLAB: Lessons
Completing The Square
A “complete” square is a quadratic expression such as which can be factored as the square of a term. In this case we would have
... | 4 | [
0.0179443359375,
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0.0233154296875,
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0.02001953125,
0.031494140625,
0.0048828125,
0.031494140625,
-0.08251953125,
0.0371093... | 3,086 | 3086 | |
Trigonometry
Ok... So you have your basic Right Triangle...
Where...
Line
A
is the Height (Y or Rise)
Line
B
is the Length (X or Run)
Line
C
is the Hypotenuse (Radius)
Angle
a
is Opposite Line
A
Angle
b
is Opposite Line
B
Angle
c
is Opposite Line
C
(and is always 90 degrees)
For the functions to... | 4 | [
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0.053955078125,
0.09814453125,
0.0194091796875,
-0.09326171875,
0... | 3,087 | 3087 | |
Eigen Vectors
Determinants, Eigen Vectors
Eigen Vectors
An eigen vector is a vector that is scaled by a linear transformation, but not moved. Think of an eigen vector as an arrow whose direction is not changed. It may stretch, or shrink, as space is
transformed, but it continues to point in the same direction. Most a... | 4 | [
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... | 3,088 | 3088 | |
3: Defining Functions
Chapter 3: Defining Functions
J comes with a collection of functions built-in; we have seen a few, such as * and +. In this section we take a first look at how to put together these built-in functions, in various ways, for the
purpose of defining our own functions.
3.1 Renaming
The simplest wa... | 4 | [
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-0.0125732421875,
0.1123046... | 3,089 | 3089 | |
cubic polynomial...
September 23rd 2009, 08:50 PM
Vedicmaths
cubic polynomial...
Hello,
I need a help here in this problem...
For f(x) = x^3 + 6x^2 - 15x + k, the absolute maximum and absolute minimum value on the interval [-10, 2] have the same absolute value. Find the value of K? ....
I know we ... | 4 | [
-0.004608154296875,
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0.0255126953125,
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-0.01... | 3,090 | 3090 | |
Legendre-Gauss Quadrature on an Ugly Integral
August 6th 2012, 07:38 AM #1
Junior Member
Joined
Aug 2012
From
Oxford, UK
Posts
36
Thanks
2
Legendre-Gauss Quadrature on an Ugly Integral
I'm trying to perform nth-Order Legendre-Gauss Quadrature on an integral of mine. The algorithm I've written for... | 4 | [
-0.043701171875,
-0.0086669921875,
0.043701171875,
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0.005859375,
0.0155029296875,
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0.10595703125,
0.01300048828125,
0.0079345703125,
-0.039306640625,
-0.00933837890625,
0.0177001953125,
... | 3,091 | 3091 | |
Homework Help
Posted by zachary on Friday, November 2, 2012 at 5:07pm.
given the function f(x)= x^3+3x find the rate of chnge between the two values x:1 to 2
find the equation of a secant line containing the given points (1,f(1) and (2,f(2))
• college algebra - Reiny, Friday, November 2, 2012 at 5:30pm
f(1) =... | 4 | [
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0.04150390625,
-0.07861328125,
0.004852294921875... | 3,092 | 3092 | |
Significance Testing: Parametric & Nonparametric
Home > E-book list > Significance Testing: Parametric & Nonparametric
Reference:
Garson, G. D. (2012). Significance Testing: Parametric & Nonparametric. Asheboro, NC: Statistical Associates Publishers.
Instant availablity without passwords in Kindle format on Ama... | 5 | [
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0.003173828125,
-0.02197... | 3,093 | 3093 | |
Differentiable functions
December 7th 2011, 12:37 AM #1
Junior Member
Joined
Jan 2009
Posts
74
Differentiable functions
Hi there,
I'm having difficulty with this problem:
Assume that x and y are differentiable functions of t. Find dy/dt when x^2-xy+y^2=19, dx/dt=3 for x=2, and y>0.
Anyone ... | 5 | [
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0.01324462890625,
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0.0174560546875,
-0.05493164062... | 3,094 | 3094 | |
Binomial coefficients
August 19th 2011, 11:59 AM
alexmahone
Binomial coefficients
Prove that for all positive integers n > 1,
$\sum_{k=0}^n\frac{1}{k+1}\dbinom{n}{k}(-1)^{k+1}=0$
My attempt:
$(1+x)^n=\sum_{k=0}^n\dbinom{n}{k}x^k$
Integrating both sides,
$\frac{(1+x)^{n+1}}{n+1}=\sum_{k=0... | 5 | [
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Solving The Towers Of Hanoi Mathematically And Programmatically – The Value Of Recursion
don't really understand recursion – it's a fact, I've seen it time and time again. Even when we understand how it works, we tend to only use it by rote, on problems that we expect to have recursive
solutions. For example, we know t... | 5 | [
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0... | 3,096 | 3096 | |
A pair of sequence problems
October 7th 2009, 12:36 PM #1
Member
Joined
Oct 2009
Posts
128
A pair of sequence problems
Does this sequence diverge or converge? If it converges, find the limit-
$(\frac{1}{n})^{(\frac{1}{n})}$
I know the harmonic sequence diverges, but I've taken natural logs of b... | 4 | [
-0.025146484375,
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-0.0123291015625,
0.11767578125,
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0.000072479248046875,
-0.0415... | 3,097 | 3097 | |
Sir Robert Anderson and Daniel 9
Systematic overview of why Sir Robert Anderson's calculations in
The Coming Prince (with regards to the the prophecy of Daniel 9)
... | 4 | [
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0.... | 3,098 | 3098 | |
Another GCD using Euclid's Algorithm
September 23rd 2008, 07:35 AM #1
Newbie
Joined
Sep 2008
Posts
17
Here is another problem that I think I may have gotten right. Can someone help me? What do you get?
(85,65)
$\begin{array}{rcl} 85 & = & (1)({\color{red}65}) + {\color{blue}20} \\ {\color{red}65... | 4 | [
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0.076171875,
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0.011169... | 3,099 | 3099 |