content
string
quality_label
int64
meta
string
all-MiniLM-L6-v2_embedding
list
doc_id
int64
unique_id
string
2 questions.. volume and rate of change? April 7th 2009, 11:43 PM #1 Newbie Joined Apr 2009 From Melbourne Posts 4 2 questions.. volume and rate of change? Gday. If anyone can show me how to do these i appreciate it muchly. Im on a 2 week break with an exam first day back and got no idea wha...
5
[ 0.0262451171875, 0.041259765625, 0.0294189453125, -0.0419921875, 0.0301513671875, -0.06591796875, -0.057373046875, 0.06298828125, -0.041748046875, 0.064453125, -0.037353515625, -0.0478515625, -0.04833984375, 0.0859375, -0.07568359375, 0.056884765625, 0.0025634765625, 0.020141601562...
30,800
30800
Oscillatory Behavior of Solutions of Certain Integrodynamic Equations of Second Order on Time Scales Abstract and Applied Analysis Volume 2014 (2014), Article ID 259467, 5 pages http://dx.doi.org/10.1155/2014/259467 Research Article Oscillatory Behavior of Solutions of Certain Integrodynamic Equations of Second Order...
5
[ -0.058837890625, 0.053466796875, 0.09375, 0.06298828125, -0.015380859375, -0.05908203125, -0.10546875, 0.00167083740234375, 0.0294189453125, -0.0546875, 0.06689453125, -0.0225830078125, 0.024169921875, -0.01318359375, -0.005279541015625, -0.0380859375, -0.035400390625, -0.001228332...
30,801
30801
[SOLVED] Swapping your dependent/independent variables? (ODE) February 2nd 2008, 05:19 PM Friedeggs123 [SOLVED] Swapping your dependent/independent variables? (ODE) I just discovered this board and it seems like an awesome idea. I have a question that I've been wracking my brains on for a while now and I can't f...
5
[ -0.06494140625, -0.08447265625, -0.01373291015625, 0.033447265625, -0.0255126953125, -0.052001953125, -0.007659912109375, -0.0206298828125, 0.0225830078125, -0.049560546875, 0.02587890625, 0.072265625, 0.00762939453125, 0.0361328125, 0.007080078125, 0.07275390625, -0.061767578125, ...
30,802
30802
Applications of Bregman-Opial Property to Bregman Nonspreading Mappings in Banach Spaces Abstract and Applied Analysis Volume 2014 (2014), Article ID 272867, 14 pages http://dx.doi.org/10.1155/2014/272867 Research Article Applications of Bregman-Opial Property to Bregman Nonspreading Mappings in Banach Spaces ^1Depa...
4
[ -0.0235595703125, -0.055908203125, 0.048828125, -0.062255859375, -0.035888671875, 0.028564453125, 0.022216796875, 0.006378173828125, 0.0458984375, -0.027099609375, 0.08203125, 0.00787353515625, -0.000820159912109375, -0.061767578125, 0.010498046875, 0.0272216796875, -0.00527954101562...
30,803
30803
Tuning optim with parscale January 26, 2014 By Bogumił Kamiński I often get questions what is the use of parscale parameter in optim procedure in GNU R. Therefore I have decided to write a simple example showing its usage and importance. The function I test is a simplified version of estimation problem I had to...
5
[ -0.0859375, -0.0361328125, -0.037109375, 0.02880859375, 0.036376953125, -0.1201171875, 0.03515625, 0.07275390625, -0.0830078125, -0.040771484375, 0.039306640625, 0.029052734375, 0.0162353515625, 0.00946044921875, 0.035400390625, 0.0400390625, 0.01177978515625, -0.055419921875, -0...
30,804
30804
Verify Trig Identities (CosθCotθ)/1-Sinθ - 1 = Cscθ 4(Tan^4)x + (tan^2)x - 3 = (sec^2)x[4(tan^2)x - 3] Sin(α/3)Cos(α/3) = .5Sin(2α/3) Last edited by RosieLaird; August 5th 2010 at 02:52 PM. Hello, RosieLaird! $\dfrac{\cos\theta \cot\theta}{1-\sin\theta} - 1 \:=\: \csc\theta$ The left side is: . $\dfrac{\cos\theta\cdo...
4
[ -0.050048828125, 0.06591796875, -0.00019168853759765625, 0.0087890625, 0.00872802734375, 0.0159912109375, -0.01275634765625, -0.0169677734375, 0.0498046875, -0.0128173828125, -0.01324462890625, -0.0947265625, -0.03173828125, 0.0294189453125, -0.052978515625, -0.003997802734375, -0.02...
30,805
30805
Finding CP using Partial Derivatives March 21st 2009, 08:25 PM #1 Newbie Joined Mar 2009 Posts 16 Finding CP using Partial Derivatives The equation is this B = e ^(xy/2) I have successfully found all 6 first and second order partial derivatives but need help finding the CP [/FONT] I assume ...
5
[ -0.011962890625, -0.043212890625, -0.0299072265625, -0.033447265625, 0.01361083984375, 0.0291748046875, -0.09423828125, -0.02294921875, 0.01226806640625, 0.02490234375, 0.1279296875, -0.06689453125, -0.00787353515625, 0.028564453125, 0.1630859375, 0.01544189453125, -0.0703125, -0.0...
30,806
30806
Binomial distribution. May 15th 2010, 05:47 AM #1 Newbie Joined May 2010 Posts 3 [SOLVED] Binomial distribution. Solve this problem: Six calculators are bought. The probability of a calculator breaking down within two years is 0.25. Calculate the probability that within two years: a) Exactly two...
4
[ 0.0299072265625, -0.0020751953125, 0.043212890625, -0.03955078125, -0.044189453125, 0.05859375, -0.0272216796875, -0.0419921875, 0.078125, 0.06982421875, 0.0181884765625, -0.022705078125, -0.04931640625, -0.0152587890625, 0.060302734375, 0.039306640625, -0.1376953125, -0.0517578125...
30,807
30807
Differential calculus of higher variables December 1st 2011, 11:52 PM #1 Newbie Joined Dec 2011 Posts 5 Differential calculus of higher variables if x1.x2.x3.....xn=1 where xi is positive then show that x1+x2+x3+.....+xn >=n (greater than or equal to) Guys need your help This was given as a pro...
5
[ -0.04345703125, -0.028076171875, 0.056396484375, -0.095703125, -0.039794921875, -0.005157470703125, 0.057861328125, 0.032958984375, 0.0106201171875, -0.006256103515625, -0.04443359375, 0.0034332275390625, 0.07373046875, -0.0186767578125, -0.0322265625, 0.052734375, -0.0120849609375, ...
30,808
30808
A New DG Multiobjective Optimization Method Based on an Improved Evolutionary Algorithm Journal of Applied Mathematics Volume 2013 (2013), Article ID 643791, 11 pages http://dx.doi.org/10.1155/2013/643791 Research Article A New DG Multiobjective Optimization Method Based on an Improved Evolutionary Algorithm Power D...
4
[ -0.05712890625, 0.07177734375, -0.037841796875, -0.017333984375, -0.07958984375, -0.01904296875, -0.021728515625, 0.00701904296875, 0.00051116943359375, 0.039306640625, -0.038818359375, -0.07568359375, 0.031005859375, -0.0274658203125, -0.00445556640625, 0.08837890625, 0.01953125, ...
30,809
30809
Find lower and upper estimates of integral October 26th 2013, 07:17 AM #1 Junior Member Joined Mar 2011 Posts 72 Find lower and upper estimates of integral Hi, my question is: Consider the integral of 1/(t(t+1)) with respect to t, from lower limit t=0 to the upper limit t=n, where n is an arbitrary ...
5
[ -0.06005859375, 0.060302734375, 0.09912109375, -0.051513671875, 0.03515625, -0.072265625, 0.0308837890625, 0.080078125, -0.05029296875, -0.036376953125, -0.125, 0.022216796875, 0.039306640625, -0.0184326171875, -0.0791015625, -0.0703125, 0.03125, -0.05224609375, 0.0235595703125, ...
30,810
30810
How much should you care for BABIP vagaries? If you read these pages you are familiar with the notion that pitchers have little control over the outcome of balls hit into play (and not leaving the park). That’s why our writers always warn you when a pitcher has an eye-catching ERA, but an extremely low batting average ...
4
[ 0.053466796875, 0.07080078125, -0.02197265625, -0.0111083984375, 0.0189208984375, 0.07958984375, -0.005523681640625, 0.091796875, 0.08642578125, 0.0235595703125, -0.053955078125, -0.002960205078125, -0.031005859375, -0.0130615234375, 0.0155029296875, 0.01513671875, 0.044677734375, ...
30,811
30811
Condition probability ? November 30th 2008, 04:50 AM HowardF Condition probability ? I am dealing with a problem written as follows:- Suppose that 10% of the people in a certain population have the eye disease glaucoma. For persons who have glaucoma measurements of eye pressure X will have normally distribu...
5
[ 0.057373046875, -0.0206298828125, 0.10693359375, -0.064453125, 0.00872802734375, -0.032958984375, 0.1416015625, 0.048095703125, -0.0238037109375, 0.07275390625, 0.126953125, -0.01385498046875, 0.08740234375, 0.0255126953125, -0.004913330078125, -0.0390625, -0.029296875, -0.13183593...
30,812
30812
Quaternion September 26th 2011, 02:35 PM #1 MHF Contributor Joined Mar 2010 From Florida Posts 3,093 Thanks 5 Quaternion Let $q=a+bi+cj+dk$ be a nonzero quaternion. (a) Prove that the left multiplication $L_q:\mathbb{H}\to\mathbb{H}$ given by $L_q(x)=qx$ is an isomorphism. $L_q(x_1)=L_q(...
5
[ -0.09130859375, 0.058837890625, 0.0213623046875, -0.040283203125, -0.0439453125, 0.05517578125, 0.055908203125, -0.027587890625, 0.0303955078125, -0.06982421875, 0.0986328125, -0.08349609375, -0.0252685546875, -0.021484375, -0.02490234375, 0.1455078125, -0.0703125, 0.0869140625, ...
30,813
30813
Complex integral October 14th 2010, 07:59 AM #1 Complex integral Q: Evaluate $\int_{\gamma}\frac{1}{z^{2}-2z}dz$, where $\gamma$ is the circle of raduis 1 centered at 2 traveled once conterclockwise. First thing I did was use partial fraction decomp to break up the integrand. I ended up with $\int_{\ga...
5
[ -0.06787109375, -0.02490234375, 0.00138092041015625, 0.03662109375, 0.0751953125, -0.060546875, 0.0302734375, 0.0810546875, -0.0595703125, 0.04150390625, -0.01190185546875, 0.004730224609375, 0.0081787109375, 0.036376953125, -0.03173828125, -0.01806640625, 0.034423828125, -0.112304...
30,814
30814
A pide October 18th 2009, 06:46 AM shawsend A pide Find a non-trivial solution in the first quadrant for: $f+\frac{\partial f}{\partial x}+\frac{\partial f}{\partial y}=\int_{x}^{\infty}\int_{y}^{\infty} f(u,v)dvdu$ Hint: Can you think of a trial function of two parameters $f(x,y;a,b)$ that would make ...
4
[ -0.08447265625, -0.041259765625, 0.0203857421875, -0.01239013671875, 0.0203857421875, 0.0255126953125, -0.01446533203125, -0.035400390625, -0.0038299560546875, 0.007598876953125, 0.0157470703125, 0.0341796875, -0.0262451171875, 0.049072265625, -0.0228271484375, -0.055908203125, -0.05...
30,815
30815
Latin American applied research Servicios Personalizados Articulo Indicadores Links relacionados Bookmark versión impresa ISSN 0327-0793 Lat. Am. appl. res. v.35 n.1 Bahía Blanca ene./mar. 2005   The formation of faraday waves on a liquid covered with an insoluble surfactant: influence of the surface equation o...
4
[ -0.0322265625, -0.0908203125, 0.004730224609375, -0.03515625, 0.068359375, -0.01171875, 0.005157470703125, 0.07958984375, -0.0166015625, -0.07470703125, 0.036376953125, -0.08740234375, 0.019287109375, -0.01385498046875, 0.06005859375, 0.03662109375, -0.044921875, -0.049560546875, ...
30,816
30816
alpha and omega limit sets May 23rd 2011, 06:55 AM #1 Junior Member Joined Feb 2011 Posts 52 alpha and omega limit sets Consider the solution to x''= -x with the initial conditions x(0) = 0, x'(0) = 1. Find the alpha and omega limit sets for this solution. (Then rewrite as a 2x2 system) If you s...
5
[ -0.1591796875, -0.047119140625, 0.01446533203125, 0.053955078125, 0.00860595703125, 0.06591796875, 0.024658203125, 0.037353515625, 0.025146484375, -0.091796875, 0.07666015625, 0.039794921875, 0.005615234375, -0.03369140625, -0.037841796875, 0.0172119140625, -0.020263671875, -0.1157...
30,817
30817
Further Refinements of Jensen’s Type Inequalities for the Function Defined on the Rectangle Abstract and Applied Analysis Volume 2013 (2013), Article ID 214123, 8 pages http://dx.doi.org/10.1155/2013/214123 Research Article Further Refinements of Jensen’s Type Inequalities for the Function Defined on the Rectangle ^...
5
[ -0.0269775390625, 0.0230712890625, 0.09228515625, -0.052001953125, -0.054443359375, 0.0390625, 0.00341796875, 0.0654296875, 0.0301513671875, -0.0235595703125, -0.04296875, 0.0196533203125, 0.1474609375, 0.0245361328125, -0.06787109375, -0.019775390625, 0.0162353515625, -0.1015625, ...
30,818
30818
Wolfram Demonstrations Project Simulating the Branching Process This Demonstration shows up to six simulated generations of a branching process. The distribution of the number of descendants of each member of the population can be either a Bernoulli type distribution, the Poisson distribution, or a geometric type dist...
4
[ 0.0029449462890625, -0.048828125, 0.0162353515625, 0.031494140625, 0.0020294189453125, -0.08642578125, -0.04296875, 0.038330078125, 0.0264892578125, 0.056884765625, 0.076171875, -0.043212890625, 0.05615234375, -0.049072265625, -0.006622314453125, 0.0284423828125, -0.09326171875, -0...
30,819
30819
sqrt 2, sqrt 3, sqrt 5 can't be in the arithmetic/geometric progression sqrt 2, sqrt 3, sqrt 5 can't be in the same arithmetic/geometric progression Prove that $\sqrt{2}$, $\sqrt{3}$ and $\sqrt{5}$ can't be terms in the same progression. Quote: Trivial with a calculator of course. But proving $\sqrt...
5
[ -0.05615234375, -0.09765625, 0.043701171875, -0.0303955078125, -0.036865234375, 0.0067138671875, -0.0810546875, -0.0390625, 0.02978515625, -0.006134033203125, -0.01068115234375, 0.09130859375, -0.007232666015625, 0.03173828125, -0.006256103515625, -0.04345703125, -0.08251953125, 0....
30,820
30820
remainder of the product of the relatively prime numbers May 28th 2009, 04:59 AM #1 Newbie Joined May 2009 Posts 3 remainder of the product of the relatively prime numbers Hi all, I had a problem, pls help me. Let $b_1 < b_2 < \cdots < b_{\varphi(m)}$ be the integers between 1 and m that are relative...
5
[ -0.00360107421875, -0.035400390625, 0.003692626953125, -0.07568359375, -0.03271484375, 0.0458984375, 0.1513671875, 0.08056640625, -0.0595703125, -0.041015625, 0.0137939453125, -0.010986328125, 0.115234375, 0.00885009765625, 0.0208740234375, 0.1396484375, 0.05419921875, -0.019287109...
30,821
30821
Projectiles question May 8th 2011, 08:58 PM silvercats Projectiles question Ball is projected in a 30m/s velocity with a angle of X from a place called 'O' horizontally.The ball was caught by someone at 1m of height .This is position 'P'.If tan X=4/3 ,what is the time took for the ball to go to 'P' from 'O' ...
4
[ 0.0081787109375, 0.04443359375, 0.0556640625, -0.036865234375, 0.0203857421875, 0.01068115234375, 0.00592041015625, 0.107421875, 0.0208740234375, 0.06640625, 0.07275390625, 0.037841796875, 0.0164794921875, 0.06787109375, -0.0184326171875, -0.0014495849609375, 0.006317138671875, -0....
30,822
30822
Yet Another Monad Tutorial (part 7: state monads) In this article we'll look at a very interesting class of monads: state monads. The State monad Up to this point, our approach has consisted of taking an existing type constructor, showing how it could be used as a monad (i.e to represent some kind of function-with-o...
4
[ -0.07421875, -0.07470703125, 0.06689453125, -0.002777099609375, -0.056396484375, 0.0201416015625, -0.032470703125, 0.00811767578125, -0.0537109375, -0.00067138671875, -0.09765625, -0.034912109375, -0.04931640625, 0.060546875, 0.0150146484375, -0.0133056640625, 0.013427734375, 0.026...
30,823
30823
Positive Periodic Solutions for Second-Order Ordinary Differential Equations with Derivative Terms and Singularity in Nonlinearities Journal of Function Spaces and Applications Volume 2012 (2012), Article ID 945467, 15 pages http://dx.doi.org/10.1155/2012/945467 Research Article Positive Periodic Solutions for Second...
5
[ -0.103515625, 0.003753662109375, 0.083984375, 0.08203125, 0.01312255859375, 0.035400390625, 0.0007171630859375, 0.00994873046875, 0.0089111328125, -0.005645751953125, 0.1806640625, -0.0184326171875, 0.02978515625, -0.0008087158203125, 0.045166015625, -0.0205078125, -0.0517578125, -...
30,824
30824
Law of Tangents January 16th 2013, 12:48 PM Imonars Law of Tangents Hey MHF, today in class we took Melloweid's formula, then the teacher gave us this equation and only two students were able to solve it (Headbang) I'm 100% sure I'm going to have to use Melloweid's formula to derive it. Law of Tangents ...
4
[ -0.047607421875, 0.042724609375, 0.053955078125, -0.0213623046875, 0.027587890625, 0.04736328125, 0.0035858154296875, 0.0264892578125, 0.048095703125, 0.06689453125, 0.0703125, -0.053955078125, -0.006561279296875, 0.05224609375, 0.04638671875, 0.08251953125, -0.056396484375, 0.0275...
30,825
30825
Help with limits problems January 18th 2010, 08:14 AM Lord Darkin Help with limits problems My problem says, "there's a myth circulating among calculus students which states that all indeterminate forms of types $0^0, infinity^0$ and 1^(infinity) have a value of 1 since anything to the zero power is 1 and 1 ...
5
[ -0.0159912109375, -0.0201416015625, -0.052734375, 0.045166015625, 0.0118408203125, -0.0281982421875, 0.040771484375, -0.06640625, 0.01513671875, 0.023681640625, 0.04345703125, -0.0732421875, 0.041015625, 0.0947265625, 0.0174560546875, 0.05224609375, -0.07958984375, -0.0576171875, ...
30,826
30826
I have no idea how to calculate volume of cap (=top) of a sphere (Image attached) February 15th 2010, 10:09 AM #1 Super Member Joined Nov 2008 Posts 597 I have no idea how to calculate volume of cap (=top) of a sphere (Image attached) I'm not sure if this isn't part of Calculus but it's in my Calculus te...
4
[ 0.058837890625, 0.04345703125, -0.035888671875, -0.0546875, 0.05126953125, 0.0086669921875, 0.00799560546875, 0.08544921875, 0.023193359375, -0.004180908203125, -0.11279296875, -0.012451171875, 0.0076904296875, 0.058837890625, -0.01953125, -0.07373046875, 0.006011962890625, 0.05053...
30,827
30827
Using Conjugates to Solve Limits January 21st 2011, 06:35 PM #1 Newbie Joined Dec 2010 Posts 17 Using Conjugates to Solve Limits Here is the problem: $<br /> \displaystyle \lim_{x\to 0 } \frac{\sqrt{1+h}-1}{h}<br />$ The limit of the denominator is obviously zero, which means that this equation...
5
[ -0.00003719329833984375, 0.02783203125, 0.0556640625, 0.0142822265625, -0.01123046875, -0.037109375, -0.02685546875, -0.0250244140625, 0.041015625, -0.01611328125, 0.064453125, -0.03564453125, 0.017578125, 0.0849609375, -0.034423828125, 0.058837890625, -0.0296630859375, -0.03515625...
30,828
30828
differential equation verification February 4th 2009, 03:09 PM #1 Junior Member Joined Feb 2009 Posts 45 differential equation verification (dy/dt) + y = cos(e^t) i got the integrating factor as e^t and the answer i got is y = (1/(e^t))*(sin (e^t)) + C is this correct??? Very close, when you integra...
5
[ -0.1181640625, -0.00830078125, -0.0458984375, 0.045166015625, 0.08154296875, 0.048828125, -0.03369140625, -0.0194091796875, -0.05224609375, 0.0859375, 0.09228515625, -0.02978515625, -0.05615234375, 0.083984375, 0.043212890625, -0.0289306640625, -0.015869140625, 0.05126953125, -0....
30,829
30829
maths - two dimensional motion Posted by Maggie on Tuesday, April 9, 2013 at 9:09am. The problem I am trying to solve is from AQA Mechanics M1 and is as follows: An object is moving in a plane. At time t=0, it is at the origin, O, and moving with velocity u. After 2 seconds it is at A where OA = -2i - 4j. After a fur...
5
[ -0.057861328125, 0.01019287109375, 0.00372314453125, -0.072265625, -0.0291748046875, -0.031982421875, -0.059326171875, -0.0303955078125, 0.0164794921875, -0.0089111328125, 0.1123046875, -0.004241943359375, 0.017333984375, 0.043701171875, -0.028076171875, 0.07373046875, -0.01098632812...
30,830
30830
Volume of Solid and Double Integrals July 6th 2009, 09:41 AM #1 Newbie Joined Jul 2009 Posts 18 Volume of Solid and Double Integrals Hello, I am trying to find the volume enclosed by the elliptic paraboloid z = x^2 + (y+1)^2 and the plane z - 2y - 5 = 0. I am pretty sure this integral will be t...
5
[ -0.014892578125, 0.0130615234375, 0.023681640625, -0.08349609375, 0.091796875, -0.068359375, -0.036376953125, 0.08447265625, 0.0299072265625, -0.0242919921875, -0.054931640625, 0.015869140625, -0.051513671875, 0.0595703125, -0.0267333984375, 0.0260009765625, 0.0096435546875, -0.031...
30,831
30831
Parametric Equation December 10th 2009, 07:38 AM #1 Junior Member Joined Nov 2009 Posts 36 Parametric Equation Consider the parametric curve given by the equations: $y(t) = t^2 +30 t +15$ $x(t) = t^2 +30 t +46$ How many units of distance are covered by the point P(t) = (x(t),y(t)) between t...
5
[ -0.039794921875, -0.0264892578125, -0.006134033203125, -0.0654296875, 0.03515625, -0.002899169921875, -0.036376953125, 0.1337890625, -0.00799560546875, 0.0184326171875, 0.11865234375, -0.041259765625, 0.025634765625, 0.041015625, -0.039794921875, 0.03662109375, -0.017333984375, -0....
30,832
30832
Homework Help Posted by sarsi on Thursday, September 19, 2013 at 3:11am. A labour is throwing 12 bricks per min from the ground and these just reach the roof which is 3.3 meters high. ifthe weight of each bricks be 3.75 kg then find the horse power with which the labour is working. • physics - Graham, Thursday, Sep...
4
[ -0.01177978515625, 0.10205078125, 0.0017242431640625, 0.0169677734375, -0.02783203125, -0.0908203125, -0.10546875, 0.0380859375, -0.0157470703125, -0.023681640625, 0.041748046875, -0.048583984375, 0.0498046875, 0.018310546875, -0.0888671875, 0.0308837890625, -0.0189208984375, 0.039...
30,833
30833
On the Failure and Fracture of Polymer Foam Containing Discontinuities ISRN Materials Science Volume 2013 (2013), Article ID 408596, 9 pages http://dx.doi.org/10.1155/2013/408596 Research Article On the Failure and Fracture of Polymer Foam Containing Discontinuities Department of Mechanical Engineering, University o...
4
[ -0.031982421875, -0.0439453125, 0.0771484375, -0.01361083984375, -0.0196533203125, -0.0162353515625, -0.07763671875, 0.04150390625, -0.002777099609375, 0.0125732421875, -0.0830078125, -0.00433349609375, 0.0247802734375, 0.09619140625, 0.0194091796875, -0.040283203125, 0.01611328125, ...
30,834
30834
Calculations of Conductors' Ampacity (NEC 2002) Conductor Ampacity The total amp load that the NEC allows a conductor to carry and be considered to meet the minimum safety standards after de-ration calculations are performed as required. NOTE: The breaker must be sized no larger in amp size than the ampacity rating o...
5
[ -0.047607421875, 0.005706787109375, -0.0262451171875, -0.005706787109375, 0.0218505859375, -0.0084228515625, 0.078125, 0.0849609375, -0.04248046875, 0.03076171875, 0.0174560546875, -0.046142578125, 0.05908203125, 0.07421875, -0.00494384765625, 0.0032501220703125, 0.07568359375, -0....
30,835
30835
Projectile Motion Question December 15th 2008, 06:26 PM #1 Newbie Joined Oct 2008 Posts 8 Projectile Motion Question Alright, so I have the following projectile motion problem: A daredevil jumps a canyon 12 m wide, to do so, he drives a car up a 15 degree incline. What minimum speed must he achieve ...
4
[ -0.0242919921875, 0.109375, -0.0267333984375, -0.048583984375, -0.02734375, 0.044189453125, -0.027099609375, 0.1142578125, -0.0213623046875, 0.057861328125, 0.06884765625, 0.0267333984375, -0.0211181640625, 0.08447265625, -0.03662109375, 0.1240234375, 0.01092529296875, 0.0625, -0...
30,836
30836
Using Basic identities to simply the expression April 3rd 2009, 12:52 PM #1 Newbie Joined Apr 2009 From Washington state Posts 12 Using Basic identities to simply the expression Problem: cos^2(x) / sin^2(x) + csc(x)sin(x) I've worked on it, On the right of the + sign I changed the csc(...
4
[ -0.07958984375, 0.07421875, -0.00958251953125, 0.12255859375, 0.007568359375, 0.049072265625, -0.002777099609375, -0.06640625, 0.0712890625, -0.0174560546875, 0.0186767578125, -0.07470703125, 0.04296875, 0.034912109375, 0.0081787109375, -0.006805419921875, 0.045166015625, 0.0507812...
30,837
30837
Approximating Uniform Dist by CLT August 25th 2009, 06:15 AM #1 Junior Member Joined May 2009 Posts 25 Approximating Uniform Dist by CLT I'm given a question which asks the following: In adding n real numbers, each is rounded to the nearest integer. Assume that the round-off errors, $X_{i}$, $i = 1,...
5
[ -0.006317138671875, 0.046142578125, 0.0810546875, -0.0615234375, -0.00180816650390625, -0.1044921875, 0.05126953125, 0.07275390625, 0.0098876953125, -0.0067138671875, -0.019287109375, -0.0269775390625, 0.09033203125, -0.09326171875, -0.039306640625, -0.058837890625, 0.08203125, -0....
30,838
30838
Parametric Curves April 25th 2007, 10:21 AM #1 Newbie Joined Jan 2007 Posts 16 Parametric Curves "Given the Parametric equations x=tsint and y=tcost find dy/dx at the point ((pi/2),0) I remember that one must differentiate y'/x', but I don't remember what to do with the given point. Y' = cost +...
5
[ -0.1318359375, -0.03662109375, -0.0023193359375, 0.01470947265625, 0.0179443359375, -0.000965118408203125, -0.0213623046875, 0.07568359375, 0.0115966796875, -0.00299072265625, 0.08984375, -0.0130615234375, 0.050048828125, 0.06982421875, -0.005615234375, -0.0050048828125, -0.085449218...
30,839
30839
Condorect sub-cycle rule Markus Schulze schulze at sol.physik.tu-berlin.de Fri Oct 3 11:57:37 PDT 1997 Dear David, you wrote (29 Sep 1997): > Thank you for your responses. You inspired me to look through > the archives more thoroughly. I still don't understand the sub-cycle > rule, though. First, do you have a ref...
4
[ -0.057373046875, -0.04248046875, 0.0269775390625, -0.051513671875, 0.03564453125, -0.03564453125, 0.0024566650390625, -0.0274658203125, -0.0146484375, 0.04296875, 0.011474609375, -0.02490234375, 0.09423828125, -0.042236328125, -0.0269775390625, 0.007049560546875, 0.00823974609375, ...
30,840
30840
Exploring The Exponentially Weighted Moving Average Volatility is the most common measure of risk, but it comes in several flavors. In a previous article, we showed how to calculate simple historical volatility. (To read this article, see Using Volatility To Gauge Future Risk.) We used Google's actual stock price data ...
4
[ -0.08837890625, 0.00799560546875, 0.023193359375, 0.034912109375, -0.006195068359375, 0.0172119140625, -0.03564453125, 0.051025390625, 0.06591796875, -0.025634765625, -0.01275634765625, -0.02392578125, -0.0240478515625, 0.0216064453125, -0.0546875, -0.060791015625, 0.0380859375, 0....
30,841
30841
Unique R-Module Homomorphism September 2nd 2011, 06:49 PM #1 Unique R-Module Homomorphism I am reading Dummit and Foote Ch 10: Modules and in particulat section 10.3 Generation of Modules, Direct Sums and Free Modules. I am having problems understanding and interpreting Theorm 6 - see attached pdf for the tw...
4
[ -0.052734375, 0.013671875, -0.026611328125, 0.02734375, 0.0732421875, 0.08349609375, 0.09033203125, 0.020263671875, 0.05029296875, -0.04736328125, 0.01239013671875, -0.038330078125, 0.0296630859375, -0.05615234375, 0.0732421875, -0.031005859375, -0.06689453125, -0.01239013671875, ...
30,842
30842
Expected number of blood tests. March 23rd 2011, 12:57 AM #1 Newbie Joined Mar 2011 Posts 3 Expected number of blood tests. It is known that 5% of the members of a population have disease A, which can be discovered by a blood test. Suppose that N (a large number) people are to be tested. This can be done...
5
[ 0.000484466552734375, 0.10009765625, 0.0361328125, -0.0181884765625, 0.019775390625, 0.006866455078125, 0.10546875, 0.042236328125, 0.01141357421875, 0.08935546875, -0.029052734375, -0.0284423828125, -0.01531982421875, -0.052734375, -0.1064453125, 0.01422119140625, -0.028076171875, ...
30,843
30843
inequalities June 8th 2008, 01:48 AM devanlevin inequalities seemingly simple problem i just cant seem to solve sqrt(x+5)-sqrt(8-x)<=1 x>=5 x<=8 because of the square roots, i can assume that all numbers are possitive so i can open up by multiplying by the power of 2 x+5-2*sqrt(x+5)(8-x)+...
4
[ -0.0233154296875, -0.01361083984375, 0.11376953125, 0.04345703125, -0.0439453125, -0.007354736328125, -0.0908203125, 0.035888671875, 0.0233154296875, -0.00897216796875, -0.01123046875, 0.01312255859375, 0.083984375, 0.0576171875, -0.00189971923828125, 0.06884765625, -0.0084228515625,...
30,844
30844
Bound of Partial Sum of Partition Generating Function up vote 3 down vote favorite Let $p(n)$ be the integer partition. It is already known that for $0 < x < 1$, we have $\sum_{j=0}^{\infty} p(j)x^j = \prod_{i=1}^{\infty}\dfrac{1}{1-x^{i}}$. But what if the sum on the left side stops on some $k \geq 0$? That is, do ...
5
[ -0.0478515625, -0.007293701171875, 0.0302734375, 0.019287109375, 0.004119873046875, -0.03173828125, 0.09814453125, 0.006378173828125, 0.08203125, 0.030517578125, -0.1298828125, 0.01055908203125, 0.0888671875, 0.0169677734375, 0.01446533203125, -0.002288818359375, 0.0224609375, -0.0...
30,845
30845
Isomorphism question Quote: In $G/<y^2>$, simply plug $y^2=1$ into your presentation of G. Then, the original presentation reduces to $<x, y|x^2 = y^2 = xyxy^{-1}=1>=<x, y|x^2 = y^2 = xyxy=1>$, where $y=y^{-1}$ since $y^2= 1$. It is exactly the presentation of D_4 of order 4 (See my previous reply). To con...
5
[ 0.032958984375, 0.007080078125, 0.037109375, -0.0228271484375, -0.059814453125, -0.0257568359375, 0.042236328125, -0.07275390625, 0.0166015625, -0.07568359375, 0.057373046875, 0.027587890625, 0.00457763671875, -0.0189208984375, 0.0235595703125, 0.11865234375, -0.013427734375, 0.019...
30,846
30846
Posts about de Rham on A Mind for Madness I should first point out that I’m basically sketching out Grothendieck’s article on crystals in Dix Expose, so if you want to see more that’s where you should look. Let’s first answer those questions from last time and explain exactly what it is that we are looking for in a coh...
4
[ -0.051025390625, 0.025390625, 0.061279296875, -0.018798828125, 0.02587890625, 0.01495361328125, 0.006622314453125, 0.00004363059997558594, -0.01611328125, -0.003662109375, 0.057373046875, -0.0419921875, -0.04736328125, 0.006591796875, 0.0169677734375, 0.0032958984375, -0.000408172607...
30,847
30847
partial fraction February 15th 2007, 06:22 PM #1 Member Joined Nov 2005 Posts 172 partial fraction integral ( (2x^{2}-x-20) / (x^{2} + x - 6) dx since the powers from the demon and numer are the same, i have to divide... got it to be 2 remainder -3x-8 so: -3x-8 / (x+3)(x-2) = A/(x+3) + B...
5
[ -0.058837890625, 0.01611328125, 0.029541015625, -0.005401611328125, 0.0546875, 0.0279541015625, -0.0322265625, -0.0252685546875, 0.00494384765625, -0.01806640625, 0.09716796875, -0.095703125, -0.010986328125, 0.032958984375, 0.003021240234375, 0.041259765625, -0.06005859375, -0.029...
30,848
30848
A Class of New Pouzet-Runge-Kutta-Type Methods for Nonlinear Functional Integro-Differential Equations Abstract and Applied Analysis Volume 2012 (2012), Article ID 642318, 21 pages http://dx.doi.org/10.1155/2012/642318 Research Article A Class of New Pouzet-Runge-Kutta-Type Methods for Nonlinear Functional Integro-Di...
5
[ -0.0888671875, -0.0279541015625, 0.076171875, -0.0458984375, -0.03125, 0.01165771484375, -0.03662109375, 0.07080078125, -0.007293701171875, 0.00799560546875, 0.0174560546875, -0.022216796875, -0.0859375, -0.00909423828125, 0.03173828125, 0.0341796875, -0.04150390625, 0.027465820312...
30,849
30849
Extremly hard question! Its a Challenge! let the digits be represented by letters. Then the palindrome is abcdefghhgfedcba For multiplication this means $a^2 b^2 c^2 d^2 e^2 f^2 g^2 h^2 = (a b c d e f g h)^2 = 16$ then abcdefgh = 4 possible solutions: one letter = 4, up to 7 of the others equal 1 two letters equal 2, u...
5
[ -0.008056640625, 0.0498046875, 0.0303955078125, -0.0654296875, -0.1083984375, 0.103515625, -0.003448486328125, 0.04443359375, -0.0869140625, 0.00469970703125, 0.01043701171875, -0.032958984375, 0.02490234375, 0.006378173828125, -0.076171875, 0.061279296875, -0.04443359375, -0.00312...
30,850
30850
Proposition 48 If in a triangle the square on one of the sides equals the sum of the squares on the remaining two sides of the triangle, then the angle contained by the remaining two sides of the triangle is right. In the triangle ABC let the square on one side BC equal the sum of the squares on the sides BA and AC ...
4
[ -0.1005859375, 0.06494140625, 0.00726318359375, 0.0126953125, -0.08056640625, 0.07080078125, -0.01416015625, -0.00811767578125, -0.00396728515625, -0.010009765625, 0.0216064453125, -0.0400390625, 0.034423828125, 0.032958984375, -0.00017642974853515625, -0.0277099609375, -0.08203125, ...
30,851
30851
Practice - Answer to Question 4 x + 2y = 8 x - 2y = 4 add 2x = 12 x = 6 answer for x x + 2y = 8 substitute to get answer for x 6 + 2y = 8 2y = 2 y = 1 check: x + 2y = 8 x - 2y = 4 x = 8 - 2y solve first equation for "x=" (8 - 2y) - 2y = 4 substitute into the second 8 - 2y - 2y = 4 8 - 4y = 4 -4y = -4 y = 1 answe...
4
[ -0.0216064453125, 0.01220703125, -0.026611328125, -0.041748046875, 0.00604248046875, 0.0269775390625, -0.0036468505859375, 0.031494140625, -0.027587890625, -0.0069580078125, 0.09765625, -0.0242919921875, 0.012939453125, -0.0732421875, -0.064453125, 0.037353515625, -0.111328125, -0....
30,852
30852
Find the equation of the tangent January 15th 2012, 05:12 AM #1 Newbie Joined Jan 2012 Posts 1 Find the equation of the tangent Find the equation of the tangent? I got really stuck in some equations and I've been trying to figure out how to solve them for a long time now and would really appreciate h...
5
[ -0.1181640625, -0.026611328125, 0.05712890625, -0.04638671875, 0.09375, 0.03271484375, 0.04638671875, 0.0810546875, -0.002655029296875, 0.0400390625, 0.1044921875, -0.0419921875, 0.0034942626953125, 0.11181640625, -0.00958251953125, 0.1259765625, -0.07373046875, -0.03857421875, -...
30,853
30853
Scientia Agricola Services on Demand Article Indicators Related links Share Print version ISSN 0103-9016 Sci. agric. (Piracicaba, Braz.) vol.69 no.1 Piracicaba Jan./Feb. 2012 http://dx.doi.org/10.1590/S0103-90162012000100002  ...
4
[ -0.01483154296875, -0.0045166015625, -0.0162353515625, -0.0206298828125, 0.056640625, -0.0201416015625, -0.083984375, 0.056396484375, 0.0625, -0.0255126953125, 0.035888671875, -0.1279296875, -0.0277099609375, 0.053466796875, -0.037841796875, -0.095703125, 0.0201416015625, -0.054443...
30,854
30854
Rhombus The sides of a rhombus are 10cm long. If the lengths of the diagonals differ by 4, what is the area of the rhombus? Hello, jumpman23! Quote: The sides of a rhombus are 10cm long. If the lengths of the diagonals differ by 4, what is the area of the rhombus? You're expected to know a few facts about a rhombus. ....
4
[ 0.00579833984375, 0.05810546875, -0.035888671875, -0.0966796875, -0.00421142578125, 0.0177001953125, -0.03662109375, 0.11962890625, -0.07763671875, -0.040771484375, 0.0712890625, -0.0289306640625, 0.00262451171875, 0.037841796875, -0.047119140625, 0.06884765625, -0.0035400390625, 0...
30,855
30855
taking the second derivative of a rational function November 1st 2012, 05:11 PM #1 Member Joined May 2012 From Toronto Posts 240 Thanks 1 taking the second derivative of a rational function Taking the second derivative of $x/(x+1)^{4}$ for the first derivative I got $1-3x/(x+1)^5$ ...
5
[ 0.020751953125, -0.00421142578125, 0.056640625, 0.015380859375, -0.041015625, -0.0181884765625, 0.0196533203125, -0.068359375, 0.06494140625, 0.030029296875, 0.0849609375, -0.032470703125, 0.0908203125, 0.06103515625, -0.06494140625, 0.050048828125, -0.01263427734375, 0.02856445312...
30,856
30856
Bounded area (again) May 29th 2009, 02:01 PM #1 Member Joined Nov 2008 Posts 114 Bounded area (again) Hi guys, sorry I'm not having much luck with polar coords today, there's something about them that makes me make a lot of mistakes then be unable to find them :P Anyway, we're looking at the curves ...
5
[ 0.05322265625, -0.058349609375, -0.0888671875, -0.040283203125, -0.0174560546875, -0.0291748046875, -0.0576171875, 0.052734375, 0.029052734375, 0.006011962890625, -0.0263671875, 0.03564453125, -0.01904296875, 0.034423828125, 0.044921875, 0.03857421875, -0.02880859375, -0.0522460937...
30,857
30857
Quantum Dynamics of Interacting Modes in Intracavity Third Harmonic Generation Process ISRN Optics Volume 2012 (2012), Article ID 476817, 12 pages http://dx.doi.org/10.5402/2012/476817 Research Article Quantum Dynamics of Interacting Modes in Intracavity Third Harmonic Generation Process ^1Moscow Institute of Physic...
4
[ -0.051025390625, -0.04638671875, -0.00506591796875, -0.0002613067626953125, -0.05810546875, -0.0230712890625, 0.06494140625, -0.0810546875, 0.055419921875, 0.00164794921875, 0.03515625, -0.087890625, -0.0040283203125, -0.07470703125, 0.0947265625, 0.08642578125, -0.052978515625, -0...
30,858
30858
the encyclopedic entry of Estimator In statistics , an estimator is a function of the observable sample data that is used to estimate an unknown population parameter (which is called the estimand ); an estimate is the result from the actual application of the function to a particular sample of data. Many ...
4
[ 0.0284423828125, -0.00677490234375, -0.0301513671875, 0.076171875, 0.007720947265625, 0.032470703125, -0.009033203125, 0.07666015625, 0.07861328125, 0.0135498046875, 0.021240234375, -0.0869140625, 0.06787109375, -0.1015625, 0.0128173828125, -0.03369140625, 0.0113525390625, 0.011535...
30,859
30859
M06 Q9 Author Message 2 This post received KUDOS ...
4
[ 0.04638671875, -0.00022792816162109375, 0.02197265625, 0.051025390625, -0.0291748046875, 0.0283203125, 0.052490234375, 0.09814453125, -0.11669921875, 0.04052734375, -0.046142578125, -0.06982421875, 0.0172119140625, 0.0152587890625, -0.0751953125, 0.038818359375, 0.0634765625, -0.08...
30,860
30860
inequalities 0≤a<b, prove that a^2≤ab<b^2. Also, show by example that it does not follow that a^2<ab<b^2 For the example assume a = 0 so b>0 $0^2<0<b^2$ which is false Multiply both sides by $a$ $a<b \Rightarrow a^{2}\le ab$ since $a$ can be 0 Multiply both sides by $b$ $a<b \Rightarrow ab<b^{2}$ Hence $a^{2}\le ab<b...
4
[ 0.0419921875, 0.07568359375, -0.040283203125, -0.033447265625, -0.11376953125, -0.005889892578125, -0.09130859375, -0.0830078125, 0.0615234375, 0.0038604736328125, -0.0002040863037109375, 0.06396484375, 0.031982421875, 0.041748046875, 0.054931640625, 0.0341796875, 0.09228515625, -0...
30,861
30861
Graph Products and Its Applications in Mathematical Formulation of Structures Journal of Applied Mathematics Volume 2012 (2012), Article ID 510180, 16 pages http://dx.doi.org/10.1155/2012/510180 Research Article Graph Products and Its Applications in Mathematical Formulation of Structures ^1Department of Structural ...
4
[ -0.0810546875, 0.09765625, -0.01116943359375, -0.07177734375, -0.02587890625, -0.07275390625, -0.00482177734375, 0.0189208984375, 0.0478515625, 0.0260009765625, 0.0185546875, 0.0208740234375, 0.10498046875, 0.056884765625, -0.0184326171875, -0.0030670166015625, -0.06005859375, -0.0...
30,862
30862
Masses of Negative Multinomial Distributions: Application to Polarimetric Image Processing Journal of Probability and Statistics Volume 2013 (2013), Article ID 170967, 13 pages http://dx.doi.org/10.1155/2013/170967 Research Article Masses of Negative Multinomial Distributions: Application to Polarimetric Image Proces...
4
[ 0.004608154296875, -0.0177001953125, 0.0615234375, -0.0003833770751953125, 0.016357421875, -0.08984375, -0.01434326171875, 0.0274658203125, 0.0712890625, 0.0128173828125, 0.06591796875, -0.037109375, 0.046142578125, 0.035400390625, -0.0189208984375, -0.008056640625, -0.01519775390625...
30,863
30863
Homework Help Posted by Cas' on Sunday, January 16, 2011 at 2:33am. When the sun's angle of elevation is 30 degree the shadow of a post is 6 ft longer than when the angle is 45 degree. find the height of the post • trig - Reiny, Sunday, January 16, 2011 at 8:41am let the height of the post be h ft, let the le...
4
[ -0.03369140625, 0.0986328125, -0.0022125244140625, -0.0294189453125, 0.023681640625, -0.0034942626953125, -0.0595703125, 0.07666015625, -0.006591796875, 0.06494140625, 0.053955078125, -0.0247802734375, -0.0162353515625, -0.0341796875, 0.053466796875, 0.08642578125, -0.1044921875, 0...
30,864
30864
successive differentiation Hello, prasum! The first derivative was hard enough. $\text{Find the }n^{th}\text{ derivative of: }\:y\;=\;\tan^{-1}\left(\frac{x\sin a}{1-x\cos a}\right)$ $\text{Let }\,\begin{Bmatrix}A = \sin a \\ B = \cos a \end{Bmatrix}\quad\text{ Note that: }\,A^2+B^2 \,=\,1$ We have: . $y \;=\;\tan^{-1}...
5
[ -0.0260009765625, 0.00823974609375, 0.013916015625, -0.0024871826171875, -0.053955078125, 0.000028252601623535156, 0.00115966796875, -0.036376953125, 0.046142578125, 0.05908203125, 0.0732421875, 0.04638671875, -0.024658203125, -0.0057373046875, 0.02783203125, 0.0196533203125, -0.0157...
30,865
30865
Solve trig equation April 18th 2006, 08:16 AM #1 Junior Member Joined Dec 2005 Posts 40 Solve trig equation I can't get the correct ans for this question~~ Solve the equation for 0 deg <= theta <= 360 deg. $<br /> \sin 5 \theta/ \sin \theta - \ cos 5 \theta/\cos \theta = 2<br />$ ling_c_02...
4
[ -0.05517578125, -0.0244140625, 0.05322265625, -0.00018596649169921875, 0.030517578125, 0.0106201171875, -0.07666015625, 0.0228271484375, 0.050537109375, 0.004852294921875, 0.126953125, -0.10498046875, -0.024169921875, 0.00848388671875, 0.01019287109375, 0.052490234375, 0.003646850585...
30,866
30866
Related rates, finding an angle. March 27th 2011, 06:14 PM #1 Newbie Joined Mar 2011 Posts 3 Related rates, finding an angle. I was trying to solve this problem: A ladder 13ft long is leaning against a wall. It suddenly starts to slide away at the base of the ladder. When it is 12ft away from the wa...
5
[ -0.08251953125, 0.032470703125, -0.055419921875, -0.052001953125, 0.04931640625, -0.0201416015625, -0.1142578125, 0.10888671875, 0.00933837890625, 0.036865234375, 0.09228515625, 0.057373046875, 0.0159912109375, 0.044189453125, -0.03173828125, 0.054931640625, -0.09375, 0.07763671875...
30,867
30867
Optimal Positioning of Pseudolites Augmented With GPS September 6, 2008 By Saka, M Halis Finding an Optimum Location for a Fixed Pseudolite In Support of CPS Navigation in Poor Visibility Conditions Over the last decade or so, global positioning system (GPS) positioning has played an escalating role in navigation...
4
[ -0.07763671875, -0.02978515625, 0.01556396484375, -0.046875, -0.004241943359375, -0.0255126953125, -0.0021820068359375, -0.002166748046875, 0.0250244140625, 0.01422119140625, -0.00150299072265625, 0.095703125, 0.0732421875, -0.00555419921875, -0.040771484375, -0.061279296875, 0.06225...
30,868
30868
exponential decay August 4th 2009, 04:47 PM #1 Member Joined Oct 2008 Posts 221 Each year, the population of endangered birds is reduced by 25%. If the current population is now 7500, in how many years will the population be 4000? I got the answer 1.58 years...is this correct? What is the correct for...
4
[ 0.05615234375, 0.0810546875, 0.0223388671875, 0.0087890625, -0.01202392578125, -0.0771484375, -0.032958984375, 0.03515625, 0.01470947265625, 0.0986328125, 0.06298828125, -0.05419921875, 0.007354736328125, 0.072265625, -0.0091552734375, 0.0830078125, -0.10595703125, -0.0076599121093...
30,869
30869
p value and confidence interval July 7th 2006, 05:03 AM bombo31 p value and confidence interval In a random sample of ten cans of corn from supplier B, the average weight per can of corn was sample mean or x bar = 9.4 ounces with standard deviation s = 1.8 ounces. Does this sample contain sufficient evidence...
5
[ -0.0294189453125, 0.07421875, 0.0166015625, 0.00634765625, 0.03271484375, -0.004608154296875, 0.034912109375, 0.1357421875, 0.0189208984375, -0.032958984375, 0.04345703125, -0.048828125, 0.0242919921875, -0.053466796875, 0.037841796875, -0.053466796875, 0.11083984375, -0.0223388671...
30,870
30870
search results Expand all Collapse all Results 1 - 2 of 2 1. CJM 2011 (vol 64 pp. 44) Surfaces of Rotation with Constant Mean Curvature in the Direction of a Unitary Normal Vector Field in a Randers Space We consider the Randers space $(V^n,F_b)$ obtained by perturbing the Euclidean metric by a translation, ...
4
[ -0.08837890625, -0.0196533203125, -0.02099609375, -0.04052734375, -0.03466796875, 0.04052734375, 0.008544921875, 0.03955078125, 0.0595703125, -0.0157470703125, 0.052734375, 0.00262451171875, -0.050048828125, -0.0230712890625, -0.005889892578125, -0.018798828125, -0.0712890625, 0.02...
30,871
30871
An Elementary School Maths Problem Sum July 13th 2012, 04:22 AM #1 Junior Member Joined Aug 2010 Posts 37 An Elementary School Maths Problem Sum Hi Guys, I am stuck with this elementary school maths problem sum which looks relatively easy but i just simply cannot solve it ! Algebra method canno...
4
[ 0.007568359375, 0.0732421875, 0.06640625, -0.05322265625, -0.1494140625, 0.025390625, 0.01190185546875, 0.00897216796875, -0.00061798095703125, 0.0869140625, -0.051025390625, 0.0032501220703125, -0.0238037109375, 0.0556640625, -0.0439453125, 0.037109375, -0.0001125335693359375, 0.0...
30,872
30872
Design matrices problem September 16th 2007, 02:04 PM almostperfect10 Design matrices problem I'm a bit rusty on my linear algebra and was given this problem in my advanced linear models class. Consider the use of two design matrices X and Z for estimating a curve based on the two models y = Xb + e1 and y =...
4
[ -0.03369140625, 0.05419921875, -0.0107421875, -0.01171875, 0.04248046875, 0.024169921875, -0.0123291015625, 0.006683349609375, -0.0269775390625, 0.05078125, 0.03515625, -0.045654296875, 0.1083984375, -0.0654296875, -0.022705078125, 0.099609375, 0.03125, -0.04052734375, -0.0617675...
30,873
30873
How to: Use Linear Programming using the Solver Foundation Solver APIs You can use linear programming to minimize or maximize functions. In this example, an oil refinery must procure crude oil from two sources. The objective is to minimize the purchase cost of crude oils that differ in quality and to meet minimum prod...
5
[ -0.0263671875, -0.0224609375, -0.0263671875, 0.00653076171875, -0.0113525390625, -0.040283203125, -0.11474609375, 0.0849609375, -0.0947265625, -0.02734375, -0.042236328125, -0.00083160400390625, -0.00970458984375, -0.01385498046875, -0.01483154296875, 0.04541015625, 0.04150390625, ...
30,874
30874
Solving Trigonometry November 20th 2011, 08:20 PM #1 Newbie Joined Nov 2011 Posts 2 Solving Trigonometry 1) When a pendulum 0.5m long swings back and forth, its angular displacement Ɵ from rest position, in radians is given by Ɵ=1/4sin((pi/2)t), where t is the time, in seconds. At what time(s) during...
4
[ 0.0026092529296875, 0.007354736328125, 0.06396484375, -0.040771484375, -0.09814453125, -0.00836181640625, -0.0294189453125, 0.08984375, 0.059814453125, 0.030517578125, 0.018798828125, -0.0191650390625, 0.06689453125, 0.07568359375, -0.01470947265625, 0.0478515625, 0.07666015625, 0....
30,875
30875
optimization question April 20th 2008, 07:40 PM #1 Newbie Joined Apr 2008 Posts 9 optimization question This one has been kicking my rear for too long so any help is appreciated. A box (top included) is to be made to hold exactly 216 cubic inches. It is to have a square base. Find the dimensions of...
4
[ 0.0947265625, 0.06103515625, 0.01324462890625, -0.005279541015625, 0.0164794921875, 0.048095703125, -0.0257568359375, 0.06787109375, -0.056640625, -0.0228271484375, -0.0732421875, -0.004974365234375, 0.053466796875, -0.00726318359375, -0.04638671875, 0.006561279296875, 0.005493164062...
30,876
30876
Chain Rule f(x)=(x+1)^3 Chain Rule f(x)=(x+1)3 Hey everyone. We’re going to do a couple of chain rule problems. And chain rule is a really basic concept that can apply to almost any kind of math problem. It’s an operation like multiplication or division or what a square root means. So, it’s just kind of something funda...
5
[ -0.029296875, 0.00494384765625, -0.0244140625, 0.009033203125, -0.05908203125, -0.03125, 0.00274658203125, -0.042724609375, 0.04833984375, 0.052978515625, 0.043701171875, -0.02392578125, 0.053466796875, -0.0017242431640625, 0.060302734375, 0.005584716796875, -0.09375, 0.0615234375,...
30,877
30877
Physics Questions On this page I put together a collection of physics questions to help you understand physics better. These questions are designed to challenge and inspire you to think about physics at a deeper level. To see the questions click on the category you are interested in: High School Physics Questions Co...
5
[ -0.068359375, 0.01287841796875, -0.027099609375, 0.043701171875, 0.0986328125, -0.001800537109375, 0.030517578125, 0.11083984375, 0.005615234375, 0.018310546875, 0.01904296875, -0.050537109375, 0.0126953125, 0.0947265625, 0.0390625, -0.00074005126953125, -0.014404296875, 0.11328125...
30,878
30878
Portfolio Selection with Jumps under Regime Switching International Journal of Stochastic Analysis Volume 2010 (2010), Article ID 697257, 22 pages http://dx.doi.org/10.1155/2010/697257 Research Article Portfolio Selection with Jumps under Regime Switching Department of Mathematics, University of Wales Swansea, Swans...
4
[ -0.007476806640625, -0.0849609375, -0.020263671875, -0.0037384033203125, -0.00005245208740234375, 0.03857421875, 0.0303955078125, -0.02099609375, 0.08447265625, -0.012451171875, -0.00022220611572265625, 0.06396484375, -0.0458984375, -0.038330078125, -0.018798828125, 0.00836181640625, ...
30,879
30879
Linear Algebra; prove the theorems on left and right inverses. June 14th 2008, 09:43 PM #1 Junior Member Joined Jun 2008 Posts 54 Linear Algebra; prove the theorems on left and right inverses. Prove that if the matrix $A$ has a right inverse, then for each $b$ the equation $Ax = b$ has at least one s...
5
[ -0.0888671875, 0.0047607421875, -0.0108642578125, 0.0537109375, -0.005828857421875, -0.018798828125, 0.09814453125, -0.047607421875, 0.00323486328125, 0.037841796875, 0.0400390625, 0.007232666015625, 0.0859375, 0.005889892578125, -0.013671875, 0.072265625, -0.0419921875, -0.0556640...
30,880
30880
mathschallenge.net Concurrent Congruent Segments Problem In triangle $ABC$ equilateral triangles $ABX$, $BCY$, and $ACZ$ are constructed. Prove that $AY = BZ = CX$ and that all three lines are concurrent at $O$. Solution We shall begin by showing that the three segments are congruent. Consider triangle $AXC$ in t...
4
[ -0.0927734375, 0.039794921875, -0.045654296875, -0.03662109375, -0.1298828125, -0.02978515625, 0.09521484375, -0.0225830078125, 0.055908203125, 0.016845703125, 0.0274658203125, -0.06640625, 0.06640625, 0.00958251953125, 0.033203125, -0.015869140625, -0.052978515625, 0.0233154296875...
30,881
30881
A Hofer-Type Norm of Hamiltonian Maps on Regular Poisson Manifold Journal of Applied Mathematics Volume 2014 (2014), Article ID 879196, 9 pages http://dx.doi.org/10.1155/2014/879196 Research Article A Hofer-Type Norm of Hamiltonian Maps on Regular Poisson Manifold ^1College of Science, Henan University of Technology...
4
[ -0.00616455078125, 0.019775390625, -0.01300048828125, -0.0732421875, 0.0242919921875, 0.07275390625, 0.05615234375, -0.0361328125, -0.009033203125, -0.07421875, 0.09912109375, 0.003692626953125, 0.0145263671875, -0.0234375, 0.00347900390625, -0.00921630859375, -0.048095703125, -0.0...
30,882
30882
Estimation of Static Pull-In Instability Voltage of Geometrically Nonlinear Euler-Bernoulli Microbeam Based on Modified Couple Stress Theory by Artificial Neural Network Model Advances in Artificial Neural Systems Volume 2013 (2013), Article ID 741896, 10 pages http://dx.doi.org/10.1155/2013/741896 Research Article E...
4
[ -0.09619140625, 0.0281982421875, 0.049560546875, 0.06005859375, -0.06298828125, -0.044677734375, -0.056884765625, 0.0419921875, -0.035400390625, -0.021484375, -0.0155029296875, 0.02734375, 0.011962890625, -0.0252685546875, -0.1181640625, 0.0771484375, -0.048095703125, 0.0556640625,...
30,883
30883
algebra, solve x February 6th 2007, 12:16 AM desmon algebra, solve x Hi, heres the question i was working on, which originally asked to add some algebraic fractions. That part was fine but I'm asked to find x and am stuck here. 3x^2 + 5x - 2 ------------- = 0 3x^2 + 2x Any help is greatl...
4
[ -0.0888671875, -0.050048828125, 0.0634765625, 0.0859375, 0.036865234375, 0.01495361328125, -0.024169921875, -0.064453125, 0.0147705078125, -0.0037994384765625, 0.1220703125, -0.09423828125, -0.0007476806640625, -0.00946044921875, -0.03662109375, 0.0380859375, -0.0025787353515625, -...
30,884
30884
Solve A in Ax = b June 26th 2011, 11:44 PM #1 Newbie Joined Jun 2011 Posts 5 Solve A in Ax = b If I have to vectors x and b, how can I solve matrix A in Ax = b? Or is this not possible? Eg: Code: Ax = b [a0, a1, a2, a3][x] = [x'] [b0, b1, b2, b3][y] [y'] x, y, x' and y' are...
5
[ -0.08154296875, -0.11767578125, -0.10546875, -0.0908203125, 0.0322265625, -0.015625, 0.01141357421875, -0.103515625, -0.02685546875, 0.11328125, 0.0025482177734375, 0.0537109375, 0.0111083984375, 0.005615234375, 0.03369140625, 0.1513671875, -0.0184326171875, 0.01385498046875, 0.0...
30,885
30885
Fourier coefficients December 30th 2008, 08:21 AM #1 Newbie Joined Dec 2008 Posts 23 Fourier coefficients Why there is no integrable complex valued function that has the following Fourier coefficients a_k = 1/k for k >= 1, and a_k = 0 otherwise? Thanks Alexei Are you refering to complex ...
4
[ -0.0986328125, -0.01177978515625, -0.01153564453125, 0.0791015625, 0.0150146484375, 0.0576171875, 0.0030364990234375, -0.0233154296875, 0.02490234375, 0.027587890625, -0.0238037109375, -0.025634765625, -0.037109375, -0.000438690185546875, -0.030517578125, -0.115234375, 0.033935546875...
30,886
30886
Proving question March 28th 2009, 08:37 PM noob mathematician Proving question Since E[Y] = E[E[Y/X]], can i infer that Y = E[Y/X]? Therefore i conclude that: Cov(X, E[Y/X]) = E[(X - E[X])(E[Y/X] - E[E[Y/X]])] = E[(X - E[X])(Y- E[Y])] = Cov(X, Y) Thanks in advance! March 29th 2009, 09:47 A...
4
[ -0.021728515625, -0.038330078125, 0.03662109375, -0.06396484375, 0.057373046875, 0.031982421875, 0.08251953125, -0.047119140625, -0.002960205078125, -0.0341796875, 0.0201416015625, 0.0419921875, -0.0240478515625, 0.07177734375, 0.048828125, -0.00640869140625, -0.03173828125, 0.0077...
30,887
30887
Easy character theory proof April 4th 2010, 11:30 AM brisbane Easy character theory proof Let u: G x S -> S and v: G x T -> T be two actions of a finite group G on two finite sets S and T. Let w: G x (S x T) -> (S x T) be defined by: w(g,(x,y))=(u(g,x),v(g,y)) for all (x,y) in (S x T) and all g in G. L...
5
[ -0.0537109375, -0.033447265625, 0.0791015625, 0.010009765625, -0.055908203125, 0.109375, 0.07861328125, -0.03466796875, 0.049560546875, -0.01385498046875, -0.03271484375, 0.01373291015625, 0.03466796875, 0.015625, -0.07568359375, 0.035400390625, 0.01104736328125, -0.006683349609375...
30,888
30888
Math Help May 5th 2009, 09:12 PM #1 MHF Contributor Joined Jul 2008 From NYC Posts 1,489 a and b If a and b are positive numbers, explain how the value of (sqrt{a}*sqrt{b})^2 compares with the value of a + b. I used FOIL and ended up with a + 2(sqrt{ab}) + b, which does not equal a + b. ...
4
[ -0.01385498046875, -0.004913330078125, -0.00188446044921875, 0.06396484375, -0.1220703125, -0.0218505859375, 0.036865234375, -0.046630859375, 0.0191650390625, 0.015380859375, 0.032958984375, 0.0162353515625, 0.10986328125, 0.12158203125, -0.01708984375, 0.06591796875, -0.056640625, ...
30,889
30889
Help required to solve an Arithmatic progression problem July 1st 2011, 01:15 AM #1 Newbie Joined Jun 2011 Posts 7 Help required to solve an Arithmatic progression problem The sum of the first p terms of an AP in equal to the sum of the first q terms.Prove that sum of the first p+q terms of the same ...
4
[ -0.08203125, 0.0361328125, 0.07861328125, -0.041259765625, -0.0169677734375, 0.06982421875, -0.01397705078125, -0.0034027099609375, 0.052490234375, 0.057861328125, -0.00408935546875, -0.005218505859375, 0.06689453125, 0.038818359375, -0.031494140625, 0.01116943359375, -0.011840820312...
30,890
30890
Can you Check This please? September 15th 2013, 07:44 AM tdotodot Can you Check This please? Need someone to check this and go over it with me please. Equation in factored form for a polynomial? 1. Determine an equation in factored form for a polynomial function with zeros -1 (order 2) and 3 (order 3)...
4
[ -0.039306640625, -0.047607421875, 0.039306640625, -0.001434326171875, 0.0091552734375, 0.036865234375, 0.052978515625, -0.056884765625, 0.0034942626953125, 0.0252685546875, 0.05224609375, -0.0303955078125, -0.01446533203125, 0.0306396484375, 0.0240478515625, 0.08447265625, -0.09375, ...
30,891
30891
[SOLVED] Every Subgroup of Dn of Odd order is cyclic March 4th 2010, 10:14 PM #1 [SOLVED] Every Subgroup of Dn of Odd order is cyclic Prove that any subgroup of $D_n$ of odd order is cyclic. So far I have: Let $H \leq D_n$ Let $r$ denote a simple rotation such that $r^n = e,$ and let $f$ denote a ver...
5
[ -0.0830078125, 0.040771484375, 0.05517578125, -0.000682830810546875, 0.0223388671875, -0.0201416015625, -0.00567626953125, 0.003814697265625, -0.043701171875, -0.0238037109375, 0.0257568359375, -0.043701171875, 0.01239013671875, -0.08447265625, -0.0081787109375, 0.04150390625, -0.042...
30,892
30892
Trig Substitution Help March 1st 2009, 08:02 PM #1 Junior Member Joined Sep 2008 Posts 30 Trig Substitution Help I got the problem down to (1/2)y + (1/4)sin2y the sub I used was x = siny how do i sub back to X? I know the first part is sin inverse by how do i get the 2nd part? If yo...
5
[ -0.04296875, -0.006439208984375, 0.052490234375, 0.06396484375, 0.07958984375, -0.076171875, -0.06396484375, 0.0184326171875, -0.061767578125, -0.00762939453125, 0.03857421875, -0.035400390625, 0.0184326171875, 0.064453125, 0.01251220703125, 0.0986328125, 0.013916015625, 0.02429199...
30,893
30893
Square roots subtraction September 12th 2010, 11:45 AM Joaco Square roots subtraction I have a problem that says √x+8) - √x-4) = 2 I don't know how to continue with this problem... Thank you in advance. September 12th 2010, 11:52 AM e^(i*pi) Quote: Do you mean A. $\sqrt{x+8} - \...
4
[ -0.0245361328125, 0.0302734375, 0.059326171875, 0.043701171875, -0.034912109375, 0.05517578125, -0.09814453125, 0.05126953125, 0.032958984375, -0.01611328125, 0.08251953125, -0.0244140625, 0.00921630859375, 0.057373046875, 0.021240234375, 0.047119140625, -0.033447265625, 0.05126953...
30,894
30894
Math Help August 27th 2009, 11:32 AM #1 Newbie Joined Aug 2009 Posts 6 Need Help! I don't completely understand this. multiply and simplify 36y^2 * 3y-12 3y^2-24y+48 6y here is what I understand (36y^2)(3y-12) (3y^2-24y+48)(6y) (36y^2)3(y-4) 3(y^2-8y+16)(6y) wha...
4
[ 0.0115966796875, 0.0150146484375, -0.022216796875, -0.01055908203125, 0.01348876953125, 0.0296630859375, -0.06640625, -0.0130615234375, 0.0147705078125, -0.0087890625, 0.052734375, 0.016357421875, -0.0108642578125, 0.017333984375, 0.015869140625, 0.126953125, -0.1142578125, 0.10156...
30,895
30895
Problems on characteristics May 18th 2010, 09:24 PM #1 Newbie Joined May 2010 From Atlanta, GA Posts 9 Obtain a solution of u_t + u_x = t^a, where a = alpha, and a > 0. given that u = u_0(x) on t = t0 Characteristic equation $\frac{dt}{1} = \frac{dx}{1} = \frac{du}{t^\alpha}$ ...
5
[ -0.07177734375, 0.0294189453125, 0.0478515625, -0.027587890625, -0.030517578125, 0.02099609375, 0.031982421875, 0.003570556640625, -0.02685546875, 0.06787109375, 0.10986328125, -0.04443359375, -0.0016326904296875, -0.029541015625, -0.006927490234375, 0.00640869140625, -0.07080078125,...
30,896
30896
Modeling of Viscosity and Thermal Expansion of Bioactive Glasses ISRN Ceramics Volume 2012 (2012), Article ID 816902, 5 pages http://dx.doi.org/10.5402/2012/816902 Research Article Modeling of Viscosity and Thermal Expansion of Bioactive Glasses Department of Materials Engineering, University of Technology, Baghdad ...
4
[ 0.051513671875, -0.087890625, -0.01361083984375, 0.03369140625, 0.028564453125, -0.0308837890625, 0.058837890625, 0.0244140625, -0.011474609375, 0.02734375, -0.0240478515625, 0.0228271484375, -0.00787353515625, 0.08447265625, 0.0128173828125, -0.064453125, 0.035888671875, 0.0065307...
30,897
30897
Find 90% confidence interval June 11th 2009, 06:32 AM #1 Newbie Joined Jun 2009 Posts 18 Find 90% confidence interval Random sample of math scores assumed to be $N(\mu_{x},\sigma^{2})$: X1=644, X2=493, X3=532, X4=462, X5=565 Random sample of verbal scores assumed to be $N(\mu_{y},\sigma^{2})$: Y1=623...
5
[ 0.068359375, -0.026123046875, 0.06591796875, -0.023193359375, -0.01092529296875, 0.0225830078125, -0.02880859375, 0.02734375, -0.0810546875, -0.00921630859375, 0.00701904296875, -0.0277099609375, -0.007476806640625, -0.052734375, 0.08056640625, 0.048095703125, -0.03173828125, -0.00...
30,898
30898
The Chi-square Test of Independence. The Chi-square Test of Independence. The chi-square test of independence is used to test whether two populations or variables are related or independent to each other with respect to some characteristic. 1. Know when to use the chi-square test for independence. The chi-square te...
5
[ 0.02685546875, -0.056884765625, -0.06298828125, 0.0096435546875, 0.0169677734375, 0.0093994140625, -0.0155029296875, -0.0380859375, -0.0361328125, 0.0164794921875, 0.12060546875, 0.017333984375, 0.0615234375, 0.0301513671875, -0.036376953125, -0.02490234375, -0.00433349609375, -0.0...
30,899
30899