content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Homework Help
Posted by Rebecca on Tuesday, March 9, 2010 at 12:46am.
Solve each of the following systems, if possible. Indicate whether the system has a unique solution, infinitely many solutions or no solution.
(a) 3y = x – 10
y = x – 2
(b)x + y = 5
3x + 3y = 15
• MATH214 - FredR, Tuesday, March 9, 2010 at 4:... | 4 | [
-0.146484375,
-0.026123046875,
-0.07568359375,
-0.1201171875,
0.06494140625,
0.0267333984375,
0.030029296875,
-0.0400390625,
-0.006927490234375,
-0.025146484375,
0.07275390625,
-0.01953125,
0.05419921875,
0.04736328125,
0.046142578125,
0.054931640625,
-0.035400390625,
-0.0441894531... | 700 | 700 | |
The Conformal Transformations of a Space of Four Dimensions and their Applications to Geometrical Optics
From Wikisource
The Conformal Transformations of a Space of Four Dimensions and their Applications to Geometrical Optics (1908)
by
THE CONFORMAL TRANSFORMATIONS OF A SPACE OF FOUR DIMENSIONS
AND THEIR APPLICA... | 4 | [
-0.06884765625,
0.031982421875,
0.01318359375,
-0.046875,
-0.08447265625,
-0.06787109375,
-0.000858306884765625,
0.006744384765625,
0.033935546875,
0.0179443359375,
0.05322265625,
-0.0274658203125,
-0.01202392578125,
0.0062255859375,
0.01312255859375,
-0.064453125,
-0.11865234375,
... | 701 | 701 | |
Percentage of Grades
January 4th 2009, 12:42 PM #1
MHF Contributor
Joined
Jul 2008
From
NYC
Posts
1,489
Percentage of Grades
On a standardized test with a normal distribution, the mean is 88. If the standard deviation is 4, the percentage of grades that would be expected to lie between 80 and 96 is c... | 4 | [
0.06982421875,
0.1083984375,
-0.0267333984375,
0.0274658203125,
-0.06298828125,
0.000514984130859375,
-0.03466796875,
0.1318359375,
-0.06787109375,
0.01544189453125,
0.04052734375,
-0.056884765625,
0.0634765625,
-0.0185546875,
0.028076171875,
-0.04052734375,
-0.00628662109375,
0.01... | 702 | 702 | |
Homework Help
Posted by Rebekah on Sunday, May 12, 2013 at 5:31pm.
Find a formula for the nth term if...
a)the 8th term is 8 and the 20th term is 44
b) the 8th term is 4 and the 18th term is -96
thanks!! I am just confused how you do this if you dont know what n is.
• Precalc - Steve, Monday, May 13, 2013 at 12:... | 4 | [
-0.10302734375,
0.048828125,
0.06591796875,
-0.12353515625,
-0.08837890625,
0.11279296875,
-0.013671875,
0.045166015625,
-0.007232666015625,
0.01007080078125,
0.05517578125,
-0.045166015625,
-0.0234375,
0.0242919921875,
0.00927734375,
-0.01214599609375,
-0.0380859375,
0.02600097656... | 703 | 703 | |
av
Remember a few weeks ago we were talking about Sir Isaac Newton and his goal to figure out gravity… the whole “apple” thing.
• It seems like we got sidetracked a bit, since we talked about his three laws (Lessons 15, 16, 17), but those really have (apparently) little to do with gravity.
• About all we did do is... | 4 | [
-0.01519775390625,
-0.0169677734375,
0.06640625,
0.01031494140625,
0.0625,
-0.007476806640625,
0.026611328125,
-0.007415771484375,
0.036865234375,
0.04541015625,
0.04833984375,
-0.06640625,
-0.0634765625,
-0.01519775390625,
0.01806640625,
0.0029449462890625,
0.0034332275390625,
0.0... | 704 | 704 | |
Glyphed Devastate Threat; napkin math
09-04-2009 11:17 AM #2
Registrant
Join Date
Aug 2009
Posts
37
09-04-2009 10:57 AM #1
Son of Megatron
Join Date
Jun 2009
Location
Belgium
Posts
2,337
Glyphed Devastate Threat; napkin math
A revision of how Devastate with Glyph compares to other threat ab... | 4 | [
0.00168609619140625,
0.033447265625,
0.09033203125,
0.0074462890625,
-0.041259765625,
-0.040283203125,
0.014404296875,
0.0654296875,
-0.0498046875,
0.0135498046875,
0.024169921875,
-0.0341796875,
0.03125,
0.0263671875,
-0.04150390625,
-0.01129150390625,
-0.057861328125,
-0.00527954... | 705 | 705 | |
Mplus Discussion >> Interpreting standardized thresholds
Message/Author
Jim Prisciandaro posted on Sunday, May 09, 2010 - 11:18 pm
Hello,
I was wondering how one interprets the values of standardized thresholds (i.e., makes a descriptive statement about a given threshold). I would specifically like to be able to inter... | 4 | [
-0.00848388671875,
-0.06396484375,
-0.039794921875,
0.0203857421875,
-0.0027313232421875,
-0.033203125,
0.049560546875,
0.1376953125,
-0.0159912109375,
-0.01287841796875,
0.037109375,
-0.076171875,
-0.009033203125,
-0.0106201171875,
0.0311279296875,
-0.031005859375,
0.05859375,
-0.... | 706 | 706 | |
Simplify
January 17th 2010, 12:34 AM
p75213
Simplify
I have been teaching myself calculus and in the process came across this equation:- 1/2*sin x/2*cos x/2. Can somebody show me how to simplify it? I am sure it involves the identity sin 2x=2*sin
x*cos x.
January 17th 2010, 01:00 AM
Prove It
Quote:
... | 4 | [
-0.064453125,
-0.0201416015625,
0.04296875,
0.06396484375,
0.05126953125,
-0.07861328125,
-0.052001953125,
0.03466796875,
0.029296875,
0.0213623046875,
0.059814453125,
-0.0693359375,
-0.01385498046875,
0.03955078125,
0.024658203125,
0.034423828125,
-0.022705078125,
0.0771484375,
... | 707 | 707 | |
Homework Help
Posted by 008 on Sunday, February 3, 2013 at 8:23am.
What is the second derivative for [f(x) = 1/(1+e^-x)]?
• Math - Reiny, Sunday, February 3, 2013 at 9:00am
I have just answered a question on this same function when you posted as "009".
Keep the same name please.
In this case I will si... | 5 | [
-0.0213623046875,
0.0556640625,
0.04931640625,
0.0036773681640625,
0.039306640625,
-0.048828125,
0.0189208984375,
0.042236328125,
0.004791259765625,
0.0069580078125,
0.1240234375,
-0.1337890625,
0.03515625,
-0.007659912109375,
-0.004669189453125,
-0.06396484375,
-0.03759765625,
0.0... | 708 | 708 | |
Give an expression
November 1st 2008, 10:46 AM
gearshifter
Give an expression
The minute hand on a clock is 8 cm long and the hour hand is 5 cm long. Give an expression for d, the distance between the tips of the hands, in terms of a, the angle between the hands.
D=
I've been trying to figure this o... | 4 | [
-0.07763671875,
0.08837890625,
0.09326171875,
-0.076171875,
-0.0250244140625,
0.034912109375,
-0.00506591796875,
0.07470703125,
0.05859375,
0.06494140625,
0.0771484375,
0.010986328125,
-0.0283203125,
0.06298828125,
-0.004608154296875,
-0.032958984375,
-0.04638671875,
-0.01062011718... | 709 | 709 | |
Homework Help
Posted by Ken on Wednesday, June 25, 2008 at 1:55pm.
For the reaction at 430 degree C, H2 + I2 <----->2HI. Kc = 54.3. Initially 0.714 moles of H2 and 0.984 moles of I2 and 0.886 molrd of HI are placed in a 2.40 L vessel. The equilibriuim concentration
of H2 and I2 is _____.
This is what I did. I changed... | 4 | [
0.0169677734375,
0.05712890625,
0.020263671875,
0.0419921875,
0.0179443359375,
-0.03173828125,
0.02490234375,
0.07958984375,
0.016845703125,
0.0279541015625,
0.03466796875,
-0.07958984375,
0.0390625,
-0.0419921875,
0.0166015625,
0.09765625,
0.020263671875,
-0.0194091796875,
-0.06... | 710 | 710 | |
Help on a word problem please!
March 22nd 2010, 03:52 PM #1
Newbie
Joined
Mar 2010
Posts
4
Help on a word problem please!
I am having a lot of trouble trying to solve this problem. I don't really know how to start it off. Any kind of help would be great!! Thanks a lot!
Let S denote the set of points... | 5 | [
-0.002716064453125,
0.0908203125,
-0.03759765625,
-0.15625,
0.033935546875,
0.056396484375,
0.036865234375,
0.0673828125,
-0.0380859375,
0.0264892578125,
0.044677734375,
0.061279296875,
0.1005859375,
0.1162109375,
0.00689697265625,
0.07373046875,
0.1083984375,
-0.016845703125,
-0... | 711 | 711 | |
Calculus BC: Applications of the Derivative
Problem : Suppose a rock is thrown straight up from atop a 200 -meter-high cliff at an initial speed of 30 feet per second. The height, in meters, of the rock above the ground (until it lands) at
time t is given by the function h(t) = - gt ^2/2 + 30t + 200 , where g is a cons... | 5 | [
-0.03271484375,
0.0198974609375,
-0.006439208984375,
-0.072265625,
-0.0054931640625,
-0.003875732421875,
-0.058349609375,
0.12158203125,
-0.002105712890625,
0.07958984375,
0.0576171875,
0.0038299560546875,
0.0194091796875,
0.01519775390625,
-0.023193359375,
0.052978515625,
0.07714843... | 712 | 712 | |
Stata
What is the between estimator?
Title Between estimators
Author William Gould, StataCorp
Date March 2001
Question
I understand the basic differences between a fixed-effects and a random-effects model for a panel dataset, but what is the “between estimator”? The manual explains the command, but I canno... | 4 | [
-0.11328125,
-0.103515625,
0.051025390625,
0.044677734375,
0.07080078125,
0.06787109375,
0.026123046875,
-0.026611328125,
0.02978515625,
0.01116943359375,
-0.001800537109375,
-0.03271484375,
0.0810546875,
-0.068359375,
0.039306640625,
0.056884765625,
0.049072265625,
-0.040283203125... | 713 | 713 | |
Lawn Mower Cord Problem (Radians and Angular Velocity)
December 12th 2010, 09:46 AM #1
Junior Member
Joined
Dec 2010
Posts
47
Hi, this is my first time on this website and I hope to help other people while getting help myself. First off, I was absent the day this homework was assigned; therefore I have no... | 4 | [
-0.045166015625,
-0.02001953125,
-0.11181640625,
-0.05029296875,
-0.003021240234375,
0.0125732421875,
-0.09521484375,
0.0189208984375,
0.032470703125,
0.0142822265625,
0.1591796875,
0.006561279296875,
0.01531982421875,
0.01202392578125,
-0.0390625,
0.10205078125,
-0.044677734375,
0... | 714 | 714 | |
Bessel's Inequality and Parseval's Formula: The Energy Theorem
We have seen some types of approximations, such as Taylor and Fourier approximations. The type of convergence used changes depending on the nature of the approximation. One of the most useful for
Fourier approximations is L^2-convergence:
Let f (x) be an i... | 5 | [
-0.051025390625,
-0.0003185272216796875,
0.03515625,
0.08203125,
-0.055908203125,
0.10595703125,
-0.046142578125,
0.037841796875,
-0.00193023681640625,
-0.041259765625,
-0.0277099609375,
0.072265625,
-0.0093994140625,
-0.07373046875,
-0.0098876953125,
-0.09521484375,
0.04052734375,
... | 715 | 715 | |
Homework Help
Posted by Lois on Monday, July 22, 2013 at 8:10pm.
Which expression is equivalent to csc x - sin x?
• Jackie, Karen, Lois Sharla ? trig - Reiny, Monday, July 22, 2013 at 8:20pm
Why are you switching names ?
Please stick with one name.
• trig - Reiny, Monday, July 22, 2013 at 8:43pm
cs... | 4 | [
-0.064453125,
-0.00897216796875,
0.0009765625,
0.032958984375,
-0.023193359375,
0.01171875,
0.01611328125,
-0.015869140625,
0.027587890625,
-0.003082275390625,
0.064453125,
-0.1162109375,
0.0274658203125,
0.05908203125,
0.0478515625,
-0.038818359375,
0.0286865234375,
0.040283203125... | 716 | 716 | |
Spectrum efficiency of nested sparse sampling and coprime sampling
Abstract
This article addresses the spectrum efficiency study of nested sparse sampling and coprime sampling in the estimation of power spectral density for QPSK signal. The authors proposed nested sampling
and coprime sampling only showed that these n... | 4 | [
-0.06201171875,
0.06591796875,
-0.08740234375,
0.01519775390625,
-0.006103515625,
-0.033203125,
0.026611328125,
-0.0240478515625,
0.08251953125,
-0.0064697265625,
-0.05078125,
0.01116943359375,
0.01483154296875,
-0.046142578125,
0.05810546875,
-0.025390625,
0.06494140625,
0.0060729... | 717 | 717 | |
Rayleigh distribution and unbiased estimator
June 19th 2010, 12:57 PM
losm1
Rayleigh distribution and unbiased estimator
$X_1 ... X_n$ is random sample from Rayleigh distribution $f(x;\Theta)$
1. Show that $E(X^2) = 2\Theta$ and than construct unbiased estimator of parameter $\Theta$ based on $\sum_{k=1}^n ... | 5 | [
0.0252685546875,
-0.014892578125,
0.0291748046875,
-0.00701904296875,
0.0308837890625,
-0.00157928466796875,
-0.0517578125,
-0.0238037109375,
0.038330078125,
0.00848388671875,
0.0791015625,
-0.0003261566162109375,
0.04638671875,
-0.0888671875,
-0.042236328125,
0.04296875,
0.034179687... | 718 | 718 | |
Math Help
October 24th 2006, 08:09 AM #1
Newbie
Joined
Oct 2006
Posts
4
hi hows it going? i hope good but for me not that great cuz I don't get math!!!
I have been like trying to understand this question and it it taken me like one hour and it probably really easy but I am really fustrated!
georg... | 4 | [
-0.0140380859375,
-0.000629425048828125,
0.0177001953125,
-0.0703125,
0.03173828125,
-0.00035858154296875,
0.0186767578125,
0.0186767578125,
-0.00836181640625,
-0.00677490234375,
-0.03125,
-0.06396484375,
0.05908203125,
-0.0517578125,
-0.053955078125,
-0.059326171875,
-0.03271484375,... | 719 | 719 | |
Posts by
Posts by Tony
Total # Posts: 800
trig
Write the complex number in trigonometric form, using degree measure for the argument. -12 - 16i
trig
Convert the rectangular coordinates to polar coordinates, using radian measure for the angle. (6, -6) 6√(2),7π/4 OR -6√(2),5π/4
trig
Solve the equation. Express your ... | 4 | [
-0.07275390625,
0.08837890625,
-0.043701171875,
-0.0712890625,
-0.040771484375,
-0.00811767578125,
-0.021240234375,
0.022705078125,
-0.034912109375,
-0.00439453125,
0.04248046875,
-0.039794921875,
0.017822265625,
0.033203125,
0.041748046875,
-0.028564453125,
-0.0830078125,
0.054687... | 720 | 720 | |
Homework Help
Posted by john on Thursday, July 26, 2007 at 3:06am.
Find an orthonormal basis for the subspace of R^3 consisting of all vectors(a, b, c) such that a+b+c = 0.
The subspace is two-dimensional, so you can solve the problem by finding one vector that satisfies the equation and then by constructing another ... | 5 | [
-0.08251953125,
-0.02880859375,
-0.025146484375,
-0.0208740234375,
-0.0341796875,
-0.0185546875,
0.005126953125,
-0.0908203125,
-0.05859375,
-0.00144195556640625,
0.0019989013671875,
-0.0159912109375,
-0.01190185546875,
0.017822265625,
-0.048095703125,
-0.0126953125,
-0.07666015625,
... | 721 | 721 | |
[SOLVED] Complex integral
October 19th 2009, 04:11 PM #1
[SOLVED] Complex integral
Let $C$ be the unit circle with the positive sense.
Evaluate $\int _C \frac{dz}{\sin z}$.
My attempt :
Ok so first I notice that $\sin (z)=0$ only when $z=0$ (at least in the circle, if I'm not wrong).
So there is ... | 5 | [
-0.07421875,
0.0030364990234375,
-0.06201171875,
0.08837890625,
0.04541015625,
-0.01531982421875,
-0.01416015625,
0.00445556640625,
0.0262451171875,
0.06201171875,
-0.07080078125,
-0.053466796875,
-0.059326171875,
0.036376953125,
-0.052978515625,
-0.05126953125,
0.0179443359375,
-0... | 722 | 722 | |
Pr radar detecting an aircraft
September 17th 2009, 05:57 PM #1
Member
Joined
Mar 2009
Posts
133
Pr radar detecting an aircraft
Hi All,
I think I have the right answer for this, but I'm not that confident on these questions..
Three radar sets, operating independently, are set to tdetect any air... | 4 | [
0.01806640625,
-0.0712890625,
-0.0390625,
-0.0439453125,
0.07861328125,
-0.01361083984375,
0.1318359375,
-0.08056640625,
-0.003143310546875,
0.01385498046875,
-0.014404296875,
-0.07177734375,
0.059814453125,
-0.0086669921875,
0.060791015625,
0.08154296875,
-0.033935546875,
-0.10107... | 723 | 723 | |
Homework Help
Posted by pj on Wednesday, December 17, 2008 at 9:24pm.
Could I get some help Please!!!!!!!!!
(1) Find the LCD
3/3v^2-3v-7/3v-3
(2) Find the LCM
14z^7 and 98z^8
(3) Find LCM
y^3+6y^2+9y,y^2-6y
• Algebra - Reiny, Wednesday, December 17, 2008 at 9:46pm
factor each of your denominators.
th... | 4 | [
-0.06689453125,
0.051513671875,
-0.0027008056640625,
-0.0084228515625,
0.0498046875,
0.03271484375,
-0.0150146484375,
0.007080078125,
-0.09326171875,
-0.024169921875,
0.078125,
-0.06591796875,
0.0213623046875,
0.076171875,
-0.0186767578125,
0.01409912109375,
-0.07861328125,
0.04345... | 724 | 724 | |
Homework Help
Posted by Kenny on Monday, February 22, 2010 at 9:12pm.
Could someone please help me with this question;
Find the tangent to the curve y=x^2-8x+14 which slope is -2. Show that this tangent touches the curve y= -x^2-4x+4. Find the point of contact.
Thank you.
• Calculus - bobpursley, Monday, February... | 4 | [
-0.119140625,
-0.006378173828125,
0.028564453125,
0.001708984375,
0.0020751953125,
0.0625,
0.10693359375,
0.158203125,
0.025634765625,
-0.046142578125,
0.0751953125,
-0.068359375,
0.00872802734375,
0.025634765625,
-0.01275634765625,
0.1005859375,
-0.02197265625,
-0.1015625,
-0.03... | 725 | 725 | |
Math Help
June 5th 2007, 09:16 AM #1
robins
Guest
can I post my Probability and Statistics question? or should I say questions.... I believe I can because this is the section of Probability and Statistics! duh! okay anyhoo on to my question!
this question has me stumped more than a tree! haha get it! sorry an... | 4 | [
0.037841796875,
0.036376953125,
0.00799560546875,
-0.0018463134765625,
-0.00024127960205078125,
-0.06787109375,
0.09521484375,
0.007354736328125,
-0.051025390625,
0.07763671875,
0.0274658203125,
-0.1005859375,
0.04541015625,
-0.04296875,
0.049072265625,
-0.0966796875,
0.02294921875,
... | 726 | 726 | |
MathGroup Archive: March 2007 [00780]
[Date Index] [Thread Index] [Author Index]
Re: compile speed
• To: mathgroup at smc.vnet.net
• Subject: [mg74530] Re: compile speed
• From: "Boson" <sandro.romani at gmail.com>
• Date: Sat, 24 M... | 4 | [
-0.03369140625,
-0.00830078125,
-0.11083984375,
-0.0172119140625,
-0.0234375,
-0.10498046875,
0.00872802734375,
-0.07568359375,
-0.099609375,
0.0279541015625,
0.0269775390625,
-0.000598907470703125,
0.0213623046875,
-0.007110595703125,
0.01318359375,
0.08544921875,
-0.050537109375,
... | 727 | 727 | |
MRAC - Experimental Results
After simulating the system in simulink (outlined in the simulation section), the designed controller was implemented on the real world system. Data was acquired and processed using LabVIEW 7.1. It
should ... | 4 | [
-0.08056640625,
-0.0159912109375,
-0.06689453125,
-0.003936767578125,
-0.1123046875,
-0.064453125,
-0.0908203125,
0.06640625,
-0.046142578125,
0.0162353515625,
0.1025390625,
0.0294189453125,
0.052734375,
-0.0284423828125,
-0.059326171875,
-0.022216796875,
0.0172119140625,
-0.102539... | 728 | 728 | |
Bisecting Diagonals of Quadrilateral means Parallelogram Proof
April 18th 2008, 11:31 AM #1
Junior Member
Joined
Mar 2008
Posts
40
I am trying to prove: If the diagonals of a quadrilateral bisect each other, then the quadrilateral is a parallelogram, by using vectors.
This is what I have:
Let ABC... | 4 | [
-0.05517578125,
0.01190185546875,
-0.01446533203125,
-0.078125,
-0.0703125,
0.0005035400390625,
-0.0556640625,
0.00238037109375,
0.051513671875,
0.021728515625,
0.0703125,
-0.047119140625,
0.0908203125,
-0.0140380859375,
-0.00811767578125,
0.045654296875,
-0.01470947265625,
-0.0014... | 729 | 729 | |
Homework Help
Posted by George on Thursday, October 16, 2008 at 6:21pm.
Use analytical methods to find the exact global maximum and minimum values of the function f(x)=8x-ln(4x) for x >0. If a global maximum or minimum does not exist, enter the word NONE.
For the global maximum at x=none, But for the Global minimum a... | 5 | [
0.042236328125,
-0.01031494140625,
0.055419921875,
-0.0478515625,
-0.005859375,
-0.03759765625,
-0.050048828125,
0.1220703125,
0.0048828125,
-0.0189208984375,
0.051025390625,
-0.02587890625,
0.0301513671875,
0.10595703125,
-0.0458984375,
0.09033203125,
-0.0120849609375,
-0.12597656... | 730 | 730 | |
Homework Help
Posted by nikki on Thursday, September 30, 2010 at 12:34am.
How to solve: the measure of an angle is 12 less than twice the measure of its supplement. What is the measure of the angle?
• Geometry - Kyle Buchanan, Thursday, September 30, 2010 at 2:29am
x + (2x - 12) = 180
3x - 12 = 180
3x ... | 4 | [
-0.016845703125,
0.060546875,
-0.0012664794921875,
-0.04052734375,
-0.035400390625,
0.0274658203125,
0.0247802734375,
0.03173828125,
-0.01513671875,
-0.0093994140625,
0.0194091796875,
-0.0693359375,
0.048095703125,
0.020751953125,
0.040283203125,
-0.060546875,
-0.01611328125,
0.057... | 731 | 731 | |
Thermodynamics: Structure
Problem :
Suppose that we have a fuel cell battery, in which electrons flow from a terminal in one half cell to a terminal in another. Explain this phenomenon in terms of the chemical potential.
We can look at the battery as two systems in diffusive contact through the connecting wire. The e... | 5 | [
-0.06982421875,
0.0927734375,
-0.072265625,
0.018310546875,
-0.0302734375,
-0.0194091796875,
0.01904296875,
0.0576171875,
0.072265625,
0.051025390625,
-0.04833984375,
-0.05224609375,
0.0654296875,
0.054931640625,
-0.01123046875,
-0.08935546875,
-0.0478515625,
0.03759765625,
-0.04... | 732 | 732 | |
Mean value theorem ?
March 9th 2011, 05:32 PM #1
Junior Member
Joined
Apr 2010
Posts
58
Mean value theorem ?
Help me please with this one, I think it's refers to Mean value theorem, but not sure...
Let us, derivative of a function $f(x)$ - is continuous and $f(0)=1$. Also $\forall x>0: f'(x)>f(x)$.
... | 4 | [
-0.052734375,
0.04052734375,
0.08056640625,
-0.02734375,
-0.0380859375,
-0.0230712890625,
0.0262451171875,
0.0908203125,
-0.00872802734375,
0.0810546875,
0.0556640625,
-0.0264892578125,
0.076171875,
-0.047607421875,
0.0172119140625,
-0.022216796875,
0.02099609375,
-0.038818359375,
... | 733 | 733 | |
Optimal Juggling
The Analysis and Over-analysis of Juggling Patterns
... | 4 | [
-0.021484375,
0.0255126953125,
0.0021209716796875,
-0.10546875,
-0.051025390625,
-0.06787109375,
0.048095703125,
0.047607421875,
0.00421142578125,
0.00099945068359375,
-0.064453125,
0.041015625,
0.0103759765625,
0.078125,
-0.047607421875,
0.031005859375,
-0.0458984375,
0.0291748046... | 734 | 734 | |
Homework Help
Posted by Megan on Sunday, April 1, 2007 at 11:31pm.
alright. i need to write a definite integral for the volume and evaluate the integral for the region bounded by y=x^2, y=0, and x=1 revolved about the a) x-axis, b) the y-axis, c) x=2, and d) y=-2.
HELP!
Lets do the x=2 axis.
dV= pi rh dr where r is... | 5 | [
0.052978515625,
0.038818359375,
-0.007415771484375,
-0.08837890625,
-0.03173828125,
-0.0272216796875,
-0.061279296875,
0.076171875,
-0.049072265625,
-0.043212890625,
-0.041259765625,
0.07421875,
0.0098876953125,
0.01080322265625,
-0.04541015625,
0.0005645751953125,
-0.039794921875,
... | 735 | 735 | |
Quick Review 3-1
Unit 3 - Objective 1 - Tangent Lines and Normal Lines
Example 1
To find the equation of the tangent line to the curve at a given point, you need to find the 1st derivative of the function. The derivative is then evaluated at a... | 4 | [
-0.040771484375,
-0.04833984375,
-0.00439453125,
-0.03515625,
-0.00110626220703125,
0.025634765625,
-0.04150390625,
0.0595703125,
-0.046875,
0.06787109375,
0.042724609375,
-0.05615234375,
0.04931640625,
0.0159912109375,
-0.006317138671875,
0.10107421875,
-0.091796875,
0.03662109375... | 736 | 736 | |
Homework Help
Posted by Breana on Thursday, January 13, 2011 at 12:41pm.
What are the roots, real and imaginary of:
Y=x^4-6x^3+9x^2-6x+8
• Precal - Henry, Friday, January 14, 2011 at 8:51pm
Y = X^4 - 6X^3 + 9X^2 -6X + 8 = 0,
It was determined by trial and error
that when X = 2, Y = 0. Therefore, 2
... | 4 | [
-0.052490234375,
0.0159912109375,
-0.060546875,
0.06494140625,
0.01214599609375,
0.0308837890625,
-0.010986328125,
0.0289306640625,
0.00921630859375,
-0.083984375,
0.08984375,
-0.06005859375,
-0.00738525390625,
0.042236328125,
0.01123046875,
0.0380859375,
-0.04736328125,
-0.0520019... | 737 | 737 | |
math world problems.
Posted by katie k on Wednesday, January 4, 2012 at 10:32am.
If the length of each side of a regular hexagon is 10 ft, the what is the distance from a vertex to the center?
Andrea and Carlos left the airport at the same time. Andrea flew at 180 mph on a course with bearing 80 degrees, and Carlos f... | 4 | [
0.076171875,
0.08935546875,
-0.08447265625,
-0.00555419921875,
-0.020263671875,
0.04150390625,
-0.0693359375,
0.06982421875,
-0.07763671875,
0.00836181640625,
0.037841796875,
-0.016845703125,
0.00616455078125,
0.052490234375,
0.0230712890625,
-0.044677734375,
-0.05029296875,
-0.079... | 738 | 738 | |
Homework Help
Posted by christy on Wednesday, February 15, 2012 at 8:53pm.
A card is drawn from a standard deck of cards. Find P(A U B) in each part.
A= {getting a heart}, B= {getting an even number}
A= {getting a club}, B= {getting a red card}
A= {getting an ace}, B= getting a black card}
A= {getting a prime}, B=... | 4 | [
0.0103759765625,
0.076171875,
-0.024658203125,
0.036865234375,
-0.015380859375,
0.055419921875,
0.09521484375,
-0.0576171875,
0.03369140625,
-0.041259765625,
-0.01519775390625,
-0.0830078125,
-0.06396484375,
-0.043212890625,
0.056640625,
0.034423828125,
-0.05224609375,
-0.079101562... | 739 | 739 | |
Equality of sets
December 15th 2009, 06:58 AM #1
Equality of sets
I have a final tonight and I forgot how to do this:
Let f: X $\longrightarrow$ Y be a function. Show that
(a) f(S $\cap$ T)) $\subset$ f(S) $\cap$ f(T)
(b) If f is 1-1, then show that the above inclusion is actually an equality of se... | 4 | [
-0.04833984375,
-0.0240478515625,
0.01263427734375,
-0.0634765625,
0.08349609375,
0.0050048828125,
0.158203125,
0.034912109375,
-0.044189453125,
-0.053466796875,
-0.00347900390625,
-0.049560546875,
0.0673828125,
0.020263671875,
0.061767578125,
0.061279296875,
0.0223388671875,
-0.08... | 740 | 740 | |
[SOLVED] Limit when Hopital's rule fails
July 3rd 2008, 01:41 AM #1
[SOLVED] Limit when Hopital's rule fails
I have a function $f(x) = g^{-1}(h(x))$ and I'm looking for $\lim_{x \rightarrow x_0^+} f'(x)$
I know the following about the functions g and h:
□ $h(x_0)=0$ and $g(0) = 0$ so $f(x_0)=0$
□... | 5 | [
-0.072265625,
0.0037384033203125,
0.0595703125,
-0.04345703125,
0.004974365234375,
-0.068359375,
0.0322265625,
0.004730224609375,
-0.07080078125,
0.036865234375,
0.087890625,
-0.019775390625,
0.033935546875,
-0.0703125,
-0.0419921875,
0.057861328125,
-0.01312255859375,
-0.008422851... | 741 | 741 | |
Amar Gondaliya, Author at Tatvic Blog
In our previous webinar, we discussed on predictive analytics and basic things to perform predictive analysis. We also discussed on an eCommerce problem and how it can be solved using predictive
analysis. In this post, I will explain R script that I used to perform predictive analy... | 5 | [
-0.035888671875,
-0.01239013671875,
-0.1005859375,
-0.000011622905731201172,
0.0196533203125,
0.0169677734375,
0.044921875,
0.026611328125,
-0.0478515625,
-0.005340576171875,
0.004486083984375,
0.0220947265625,
0.0084228515625,
0.044921875,
0.0225830078125,
-0.0130615234375,
0.036376... | 742 | 742 | |
Calculus-Solved - Incorrect
Posted by Alaina on Saturday, May 4, 2013 at 6:58pm.
calculate delta y for f(x)= x^(3/2) with x= 4 and delta x= dx=0.1
delta y= f(x+delta x)- f(x)
= f(4.1) - f(4)
delta y= f(4.1)-8
f(x + delta x)= 8 + 3/2*x^(1/2)*0.1
= 8 + 0.15x^(1/2)
= 8 + 0.30
= 8.30
delta y= 8.30 - 8
delta y= 0.... | 4 | [
-0.01361083984375,
-0.01019287109375,
0.05908203125,
-0.006561279296875,
-0.006988525390625,
-0.0888671875,
0.0027923583984375,
0.0859375,
0.040283203125,
0.0009307861328125,
0.059814453125,
-0.1025390625,
-0.0439453125,
0.0888671875,
0.0380859375,
0.01080322265625,
0.019775390625,
... | 743 | 743 | |
Math Help
February 4th 2010, 08:12 PM #1
Member
Joined
Jan 2010
Posts
142
u substitution
i hope im doing it right :P
Solve:
$\frac{1}{(x+1)^2} + \frac{4}{x+1} +4=0$
if u = x+1 then
$\frac{1}{(u)^2} + \frac {4}{u}+4=0$
Look for LCD = $u^2$
$(u)^2 *\frac{1}{(u)^2} + (u)^2 *\f... | 4 | [
-0.00604248046875,
0.0177001953125,
0.051513671875,
0.039794921875,
-0.014404296875,
-0.054443359375,
-0.0250244140625,
0.01171875,
0.04248046875,
-0.10400390625,
0.060791015625,
-0.0673828125,
-0.037353515625,
0.119140625,
-0.1318359375,
-0.017578125,
-0.01190185546875,
-0.0133056... | 744 | 744 | |
Help in binomial theorem
How can i calculate this sum? Thanks for any kind of help.
Remember, $(1+x)^m = \sum_{j=0}^m x^j {m\choose j}$. This sum can be written as, $\sum_{k=0}^n \sum_{i=0}^k \frac{n!}{k!(n-k)!}\cdot \frac{k!}{i! (k-i)!} (-3)^i = \sum_{k=0}^n \sum_{i=0}^k {n\choose
k}\boxed{ {k\choose i} (-3)^i }$ Usi... | 4 | [
0.046142578125,
-0.038818359375,
-0.021728515625,
0.051513671875,
-0.015869140625,
-0.0634765625,
0.115234375,
-0.02587890625,
0.017822265625,
0.056640625,
0.03564453125,
-0.1376953125,
-0.01129150390625,
-0.046630859375,
0.01177978515625,
0.11962890625,
0.06787109375,
0.0264892578... | 745 | 745 | |
why is this argument about carmichael numbers true
September 9th 2009, 12:39 PM #1
Banned
Joined
Nov 2008
Posts
63
why is this argument about carmichael numbers true
to find all the carmichael numbers N $< 10^{6}$ , we only need to test composite N with primes a from 2 to 19 , and see if they satisfy:
... | 4 | [
-0.08349609375,
-0.0341796875,
-0.033447265625,
-0.000690460205078125,
0.021240234375,
0.03759765625,
0.0252685546875,
-0.006927490234375,
-0.01190185546875,
-0.048828125,
-0.061767578125,
0.09619140625,
0.052001953125,
0.028564453125,
0.018798828125,
0.01470947265625,
-0.05712890625... | 746 | 746 | |
What is Recursion?
Problem : Define "recursion". What does it mean for a function to be recursive?
Recursion is an algorithmic technique where a function, in order to accomplish a task, calls itself with some part of the task. A recursive function calls itself on a simpler version of the problem
in an attempt to simpl... | 4 | [
0.0155029296875,
-0.002471923828125,
0.027587890625,
-0.064453125,
-0.12109375,
-0.078125,
0.011962890625,
0.059326171875,
0.01312255859375,
0.0260009765625,
-0.06396484375,
0.01361083984375,
0.036376953125,
0.0218505859375,
-0.060791015625,
0.001983642578125,
0.0245361328125,
0.05... | 747 | 747 | |
Need help on simple linear regression proof
September 15th 2012, 03:37 PM #1
Newbie
Joined
Sep 2012
From
us
Posts
2
I want to derive the least square estimation of the coefficients for y=B_0+B_1*x_1+e
Can someone walk me through how to get from B to D in the image below?
http://i.imgur.com/9... | 5 | [
-0.06494140625,
0.0203857421875,
0.06982421875,
0.0115966796875,
0.049072265625,
0.0751953125,
0.03662109375,
-0.0064697265625,
-0.0223388671875,
0.07080078125,
-0.016845703125,
-0.0267333984375,
-0.0016937255859375,
-0.091796875,
-0.060546875,
0.1630859375,
-0.01055908203125,
0.03... | 748 | 748 | |
Galois Thoery.
April 24th 2010, 09:14 PM #1
Newbie
Joined
Oct 2009
Posts
4
Galois Thoery.
I'm studying for an abstract algebra exam, and I came a cross this question that I dont understand, I feel lost. I wonder if u can help me with it . I need a detailed explanation please.
thank you.
1.
... | 5 | [
0.07373046875,
0.07080078125,
0.09765625,
0.011962890625,
-0.00372314453125,
0.0252685546875,
0.07177734375,
0.006439208984375,
0.0240478515625,
-0.025146484375,
-0.015380859375,
-0.0244140625,
0.035400390625,
-0.0179443359375,
-0.06884765625,
0.091796875,
-0.047119140625,
-0.00860... | 749 | 749 | |
Re: st: determining standard errors of fixed effect terms after xtreg
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]
Re: st: determining standard errors of fixed effect terms after xtreg
From "Austin Nichols" <austinnichols@gmail.com>
To statalist@hsphsun2.harvard.edu
Subject Re: s... | 5 | [
-0.0107421875,
0.0269775390625,
0.056640625,
0.041259765625,
0.015869140625,
0.09375,
-0.046630859375,
0.0634765625,
-0.115234375,
0.047607421875,
0.047119140625,
-0.0634765625,
-0.03955078125,
-0.052490234375,
-0.030029296875,
-0.031494140625,
-0.003814697265625,
-0.00202941894531... | 750 | 750 | |
Homework Help
Posted by TUHITUHI on Saturday, October 6, 2012 at 12:18pm.
Sanjeev is twice as old as his son.If after four years he will be four times as old as his son was 9 years ago ,how old is each now ??
• math - Reiny, Saturday, October 6, 2012 at 12:54pm
present:
son --- x
father --- 2x
in ... | 4 | [
0.05859375,
0.0712890625,
0.0303955078125,
-0.0074462890625,
-0.072265625,
0.036865234375,
-0.048583984375,
0.037109375,
-0.025390625,
-0.0234375,
0.044677734375,
-0.08251953125,
0.07080078125,
0.050537109375,
0.03662109375,
0.04833984375,
-0.0380859375,
0.04248046875,
-0.1230468... | 751 | 751 | |
Homework Help
Posted by help plzzz on Sunday, May 1, 2011 at 4:32pm.
A $1.2 million state lottery pays $5,000 at the beginning of each month for 20 years. How much money must the state actually have in hand to set up the payments for this prize if money is worth 7.7%,
compounded monthly?
(a) Decide whether the proble... | 4 | [
-0.0201416015625,
0.123046875,
0.032958984375,
0.0091552734375,
-0.0260009765625,
-0.02001953125,
0.06689453125,
0.026611328125,
-0.0216064453125,
0.06591796875,
-0.035400390625,
-0.06689453125,
0.02099609375,
0.037109375,
-0.0257568359375,
0.0145263671875,
-0.05908203125,
-0.04858... | 752 | 752 | |
Homework Help
Posted by Abbey(Please help) on Tuesday, May 4, 2010 at 4:58pm.
use Demoivre's Theorem to find the indicated power of the complex number. Express the result in standard form.
(2+2i)^6
a=2 b=2 n=6
r=sqrt 2^2 + 2^2 = sqrt8
Q=7pi/4
(sqrt8)^6 = 512
512(cos 6/1 x 7pi/4) + i sin 6 x 7pi/4
512 (cos 21pi/... | 5 | [
-0.099609375,
0.09521484375,
-0.040283203125,
0.09716796875,
-0.02978515625,
-0.0201416015625,
-0.0106201171875,
0.047119140625,
0.025390625,
-0.01190185546875,
0.02734375,
-0.03515625,
-0.00098419189453125,
0.04443359375,
0.00592041015625,
0.01416015625,
-0.09521484375,
0.00762939... | 753 | 753 | |
Homework Help
Posted by rick on Tuesday, March 20, 2012 at 1:42am.
Factor each of the following trinomials: (14 marks)
A)15s2 + 26s + 8
B) x4 – 5x2 – 36 (hint: let a = x2)
C) t2 + 4t – 2
D) 2w2 – w – 4
• math - Steve, Tuesday, March 20, 2012 at 10:57am
A) You know it will be one of
(5s+a)(3s+b)
(15... | 4 | [
-0.046630859375,
0.0230712890625,
-0.01458740234375,
-0.01141357421875,
0.0224609375,
0.05322265625,
-0.01470947265625,
-0.0208740234375,
-0.1591796875,
0.053955078125,
0.03515625,
-0.0791015625,
0.0145263671875,
0.048828125,
0.005279541015625,
0.0703125,
-0.046630859375,
0.0291748... | 754 | 754 | |
Homework Help
Posted by Jack on Saturday, February 18, 2012 at 12:19pm.
2^(3x+1)=2^)2/x) I don't know what to do here to get both of the xs
• Algebra 2 - MathGuru, Sunday, February 19, 2012 at 7:55pm
Since you have the same base, do this:
3x + 1 = 2/x
Now we can solve for x:
x(3x + 1) = x(2/x) -... | 4 | [
-0.05517578125,
-0.01611328125,
-0.04638671875,
0.09375,
0.045166015625,
-0.00946044921875,
0.01611328125,
-0.0286865234375,
-0.0035858154296875,
-0.033203125,
0.040283203125,
-0.12158203125,
0.0810546875,
0.057373046875,
0.007537841796875,
0.0303955078125,
-0.095703125,
0.00457763... | 755 | 755 | |
If x is positive, which of the following could be the
Author Message
TAGS:
If x is positive, which of the following could be the [#permalink] 01 Nov 2010, 16:28
... | 4 | [
0.05615234375,
0.059326171875,
-0.00167083740234375,
-0.006866455078125,
0.01519775390625,
-0.003173828125,
0.1279296875,
-0.013671875,
-0.01165771484375,
-0.00860595703125,
0.05810546875,
-0.053466796875,
0.0693359375,
0.02392578125,
-0.087890625,
0.07177734375,
0.029052734375,
-0... | 756 | 756 | |
iven any group G and a subset W, let < W > be the smallest subgroup of G which contai
March 17th 2010, 06:04 PM
snick
iven any group G and a subset W, let < W > be the smallest subgroup of G which contai
Given any group G and a subset W, let < W > be the smallest subgroup of G which contains W?
A) prove tha... | 4 | [
-0.048095703125,
0.061767578125,
0.039794921875,
0.047119140625,
0.05517578125,
-0.035400390625,
0.1357421875,
-0.046142578125,
-0.036376953125,
-0.056884765625,
0.07275390625,
-0.025634765625,
0.06494140625,
-0.0137939453125,
-0.0322265625,
0.049560546875,
-0.03662109375,
-0.08935... | 757 | 757 | |
factoring polynomials
March 17th 2011, 05:02 PM
reallylongnickname
factoring polynomials
Im looking to for the steps to solve this: 3(x^2 -2)² (2x-3)^2
apparent answer: 12x^6 - 36x^5 - 21x^4 +144x^3 - 60x^2 - 144x + 108
March 17th 2011, 05:04 PM
pickslides
Is this expression equal to anything?
$... | 4 | [
-0.0142822265625,
-0.003509521484375,
0.0025787353515625,
0.07177734375,
-0.0263671875,
0.06982421875,
-0.051513671875,
-0.044677734375,
-0.014404296875,
-0.021728515625,
0.08251953125,
-0.040283203125,
0.0439453125,
-0.039794921875,
0.00927734375,
0.033203125,
-0.06689453125,
0.00... | 758 | 758 | |
one more identity proof
$\frac{\sin \frac{x}{2}}{\cos \frac{x}{2}} + \frac{\cos \frac{x}{2}}{\sin \frac{x}{2}} = \frac{\sin^2 \frac{x}{2} + \cos^2 \frac{x}{2}}{\sin \frac{x}{2} \cos \frac{x}{2}} = \frac{1}{\sin \frac{x}{2}
\cos \frac{x}{2}} = \frac{2}{2\sin \frac{x}{2}\cos \frac{x}{2}} = \frac{2}{\sin x} = 2\csc x$
| 4 | [
-0.09765625,
-0.00151824951171875,
0.0032958984375,
0.0927734375,
0.0810546875,
-0.006622314453125,
0.005706787109375,
0.0216064453125,
-0.013671875,
0.043701171875,
0.006103515625,
-0.08203125,
-0.0206298828125,
-0.02490234375,
0.00494384765625,
-0.002105712890625,
0.025390625,
0.... | 759 | 759 | |
Surveys and Probability Distribution
October 15th 2012, 06:21 AM
ringfile
Surveys and Probability Distribution
This is a very difficult question that I have been working on for 2 hours now.. Can any one help?
In a survey, some of the questions concern sensitive issues (e.g., income, drug use, sexual experi... | 5 | [
-0.01324462890625,
0.06689453125,
0.046875,
0.0263671875,
0.00262451171875,
-0.0289306640625,
0.07421875,
0.083984375,
-0.01458740234375,
0.0498046875,
0.052001953125,
-0.06884765625,
-0.0084228515625,
-0.00567626953125,
0.0216064453125,
0.0537109375,
0.0106201171875,
-0.0247802734... | 760 | 760 | |
CityU Institutional Repository: Numerial development of an improved element-free Galerkin method for engineering analysis
CityU Institutional Repository >
3_CityU Electronic Theses and Dissertations >
ETD - Dept. of Building and Construction >
BC - Doctor of Philosophy >
Please use this identifier to cite or link to t... | 4 | [
-0.06396484375,
0.10595703125,
0.06298828125,
-0.0026702880859375,
0.037353515625,
-0.042236328125,
-0.087890625,
0.002655029296875,
-0.019287109375,
-0.005035400390625,
0.0296630859375,
-0.09033203125,
0.0252685546875,
-0.0634765625,
-0.006744384765625,
0.033203125,
-0.045166015625,... | 761 | 761 | |
Homework Help
Posted by Niki on Sunday, October 14, 2007 at 10:45pm.
Its been awhile since I have done compleating the square, can you please help me?
Determine whether the given quadratic function has a minimum value or maximum value. Then find the coordinates of the minimum or maximum point.
19.f(x) = x2 - 2x + 1
... | 4 | [
0.059814453125,
0.017822265625,
0.037353515625,
-0.078125,
-0.03515625,
0.06298828125,
-0.031494140625,
0.1357421875,
-0.029052734375,
-0.003173828125,
0.031005859375,
0.01129150390625,
0.040771484375,
0.04345703125,
-0.0303955078125,
-0.001007080078125,
0.008056640625,
-0.05126953... | 762 | 762 | |
group collinearity
Why does clogit sometimes report a coefficient but missing value for the standard error, confidence interval, etc.?
Why is there no intercept in the clogit model?
Why can’t I use covariates that are constant within panel?
Title Within group collinearity in conditional logistic regression
Author ... | 4 | [
0.042724609375,
-0.055419921875,
0.03271484375,
0.0311279296875,
0.1240234375,
-0.0037841796875,
0.0322265625,
-0.07666015625,
0.0240478515625,
0.03125,
0.09033203125,
-0.068359375,
-0.0306396484375,
0.003570556640625,
0.013427734375,
-0.0341796875,
-0.02490234375,
-0.06103515625,
... | 763 | 763 | |
Classical Hartmann test with scanning
« journal navigation
Classical Hartmann test with scanning
Optics Express, Vol. 17, Issue 16, pp. 13959-13973 (2009)
http://dx.doi.org/10.1364/OE.17.013959
Abstract
In order to introduce many more evaluation points during the Hartmann test, the scanning of the screen across the... | 4 | [
0.01708984375,
0.01141357421875,
-0.01171875,
-0.048583984375,
-0.022216796875,
-0.058837890625,
-0.00799560546875,
0.006134033203125,
-0.04052734375,
0.048583984375,
-0.035400390625,
0.07568359375,
0.0634765625,
0.060546875,
-0.08349609375,
-0.0810546875,
-0.064453125,
-0.04101562... | 764 | 764 | |
Matrix Word Problem!!
February 11th 2009, 03:59 PM #1
Newbie
Joined
Feb 2009
Posts
1
Matrix Word Problem!!
You work for a company that has two pants (one in Tennessee and one in Colorado) that makes radios, tvs, and stereo systems. Each day the Tennessee plant can make 30 radios, 40 tvs, and 60
stere... | 4 | [
0.05908203125,
0.056396484375,
-0.09033203125,
-0.06689453125,
-0.07373046875,
-0.00016117095947265625,
-0.018798828125,
-0.038818359375,
-0.091796875,
0.1181640625,
0.01446533203125,
-0.00186920166015625,
0.13671875,
0.031982421875,
-0.047607421875,
0.09130859375,
-0.025390625,
-0... | 765 | 765 | |
Homework Help
Posted by Trig on Thursday, September 10, 2009 at 5:29pm.
Two observers 1 km apart spot an airplane. The angles of elevation of the airplane from the two observers are 22 degrees 50 minutes and 24 degrees 40 minutes. If the observers and the airplane are in
the some vertical plnae, compute the altitude o... | 4 | [
0.0341796875,
0.083984375,
0.04248046875,
-0.03857421875,
-0.0162353515625,
0.0537109375,
0.00445556640625,
0.06591796875,
0.01153564453125,
0.02685546875,
0.09765625,
-0.046630859375,
0.005889892578125,
0.021484375,
0.021728515625,
0.05419921875,
-0.06787109375,
-0.01141357421875,... | 766 | 766 | |
Help in Linear Algebra(Similar Matrices)
June 24th 2009, 12:31 PM #1
Hi guys,
I got in some trouble lately with a question in similar matrices. The question is:
If we have two 2*2 matrices, A and B, then find an invertible matrix P that makes A similar to B. All that without diagonalization. I tried to sol... | 5 | [
-0.080078125,
0.0203857421875,
-0.06787109375,
-0.029541015625,
-0.04443359375,
-0.058349609375,
0.051513671875,
-0.07568359375,
-0.03369140625,
-0.0703125,
0.01190185546875,
0.018798828125,
0.0264892578125,
0.00927734375,
-0.0284423828125,
0.042724609375,
-0.00518798828125,
-0.021... | 767 | 767 | |
Summary: Linear Differential Equations: Variation of
Parameters or Reduction of Order?
Douglas R. Anderson
Concordia College, Moorhead, Minnesota
7:30 pm, 28 October 2011, Science Lab 104
Ordinary Differential Equations
y (t) + p(t)y (t) + q(t)y(t) = r(t), t R
Recall that by using Lagrange's variation of parameters met... | 4 | [
-0.078125,
0.00830078125,
0.07080078125,
0.0400390625,
0.01531982421875,
0.1142578125,
-0.06201171875,
0.042724609375,
0.0439453125,
0.0498046875,
0.022705078125,
0.125,
0.0308837890625,
0.004486083984375,
-0.0208740234375,
0.040771484375,
-0.0306396484375,
0.0118408203125,
-0.01... | 768 | 768 | |
Homework Help
Posted by Luis on Saturday, June 25, 2011 at 11:11pm.
two binary stars moving in a perfect circle orbit
The stars have the same mass, the distance between them is one billion km (1x10^9 km), and the time each takes for one orbit is 10.4 Earth years.
Determine the mass of each star (m1=m2).
(this probl... | 4 | [
-0.006317138671875,
0.0206298828125,
0.0031585693359375,
0.005401611328125,
-0.0262451171875,
-0.087890625,
-0.0177001953125,
0.01312255859375,
-0.0810546875,
-0.041748046875,
-0.016845703125,
-0.06591796875,
0.03466796875,
-0.036865234375,
0.03369140625,
0.028076171875,
-0.005584716... | 769 | 769 | |
System of equations in 3 variables.
December 2nd 2009, 03:38 PM
kelsikels
System of equations in 3 variables.
1.) 2x + 10y + 6z = 8
x + 5y + 3z = -2
x + y + z = -4
Help! Thanks.
December 2nd 2009, 03:54 PM
Bacterius
First equation :
$2x + 10y + 6z = 8$
Can be written : $10y + 6z = ... | 4 | [
-0.1376953125,
-0.0224609375,
-0.01495361328125,
0.0159912109375,
0.072265625,
0.0174560546875,
0.032958984375,
-0.006744384765625,
-0.0908203125,
-0.01092529296875,
0.0576171875,
0.01141357421875,
0.0859375,
0.05322265625,
-0.0081787109375,
0.01055908203125,
-0.043212890625,
-0.03... | 770 | 770 | |
SparkNotes: SAT Subject Test: Math Level 1: The Unit Circle
9.1 Basic Functions 9.6 Radians and Degrees
9.2 Solving Right Triangles 9.7 Graphing in the Entire Coordinate Plane
9.3 Trigonometric Identities 9.8 Key Formulas
9.4 Graphing Trigonometric Functions 9.9 Review Question... | 4 | [
-0.049560546875,
0.004150390625,
-0.1171875,
0.06005859375,
0.047607421875,
-0.0299072265625,
-0.007354736328125,
0.037353515625,
0.09326171875,
-0.0400390625,
0.04052734375,
0.0142822265625,
0.0281982421875,
0.060791015625,
0.06787109375,
-0.14453125,
-0.04052734375,
-0.0131225585... | 771 | 771 | |
factorising
September 14th 2009, 03:18 AM #1
Member
Joined
Aug 2009
Posts
211
factorising
hi, could someone help me with this please:
a polynomial is given by $p(x) = x^3 - 6x^2 + 9x - 4$
a) factorise p(x) completely- i did this question and came up with $(x - 1)^2 (x - 4)$ but then the next qu... | 4 | [
-0.0048828125,
-0.03759765625,
-0.0126953125,
0.040771484375,
0.0703125,
0.05322265625,
-0.00799560546875,
0.0264892578125,
0.018310546875,
-0.07666015625,
0.076171875,
0.064453125,
0.0012359619140625,
0.05126953125,
0.0247802734375,
0.06640625,
-0.046875,
-0.027587890625,
-0.057... | 772 | 772 | |
tricky problem please HELP
November 27th 2006, 12:37 PM #1
Newbie
Joined
Nov 2006
Posts
3
I've tried to solve this problem for over 3 or 4 hours but I can't figure out how, please help me.
Ok so it's a curve ( parable? ) y = (ax - b) / ( 1 - x^2 )
You are supposed to solve what 'a' and 'b' shoul... | 5 | [
-0.046142578125,
0.040283203125,
-0.020263671875,
-0.064453125,
-0.0284423828125,
-0.00811767578125,
0.09228515625,
0.0213623046875,
-0.038818359375,
0.060546875,
0.072265625,
-0.05419921875,
0.040771484375,
0.0135498046875,
-0.031005859375,
0.10400390625,
-0.1044921875,
-0.0761718... | 773 | 773 | |
Help with integrating
March 12th 2011, 09:06 PM #1
Member
Joined
Dec 2009
Posts
103
Help with integrating
the problem $<br /> \int 2t/(t-3)^2$
solving with partial fractions $<br /> \frac{a}{t-3} + \frac{a}{(t-3)^2}$
$t = 3, b=6$
$t=0, a =2$
$<br /> \int \frac{2}{t-3} + \int \frac{6}{(t-3... | 5 | [
-0.049560546875,
-0.051025390625,
-0.0220947265625,
-0.02734375,
-0.037109375,
0.036865234375,
-0.0888671875,
-0.0257568359375,
0.0145263671875,
-0.001983642578125,
0.020751953125,
-0.0478515625,
-0.072265625,
-0.0654296875,
0.0228271484375,
-0.00958251953125,
-0.018798828125,
-0.0... | 774 | 774 | |
Homework Help
Posted by anon. on Wednesday, March 24, 2010 at 12:40am.
derivatives:
y=(x^3+1)^2, then dy/dx is:
i got 6x^2(x^3+1) first but im not sure.
Can i see the steps of how it is done right. I also got 2(3x^2+1), which one is right??
sorry for bugging.Thanks
• math - Damon, Wednesday, March 24, 2010 at 8... | 4 | [
-0.054443359375,
-0.011474609375,
0.0059814453125,
0.027587890625,
-0.0012969970703125,
-0.02490234375,
-0.0211181640625,
-0.0272216796875,
0.02783203125,
-0.045166015625,
0.08251953125,
-0.02294921875,
-0.0234375,
0.02490234375,
-0.044677734375,
0.025634765625,
-0.14453125,
0.0810... | 775 | 775 | |
How to find Maximum and Minimum Points?
1. $y=(1-x^2)(4-x^2)$ 2. $y=3x^4-16x^3+18x^2$ Answer: 1. $(-\sqrt{\frac{5}{2}}, -2) (\sqrt{\frac{5}{2}}, -2)$ 2. $(1, 5) (3, -27)$
The condition is : dy/dx = 0 but i get three values for each question, not two
The only way I know to solve this question is to employ some calculu... | 4 | [
0.035888671875,
-0.07080078125,
-0.0166015625,
-0.048095703125,
-0.09228515625,
-0.06201171875,
-0.0078125,
0.0732421875,
0.059326171875,
-0.01446533203125,
0.00188446044921875,
0.048583984375,
0.0615234375,
0.0673828125,
-0.0211181640625,
0.049072265625,
0.0003204345703125,
-0.054... | 776 | 776 | |
Homework Help
Posted by Sarah on Thursday, August 30, 2012 at 10:33pm.
A source in the Internal Revenue Service has stated that historically 90% of federal tax returns filed are free of arithmetic errors. A random sample of 25 returns are selected and checked carefully
for arithmetic errors. Assuming independence, fin... | 4 | [
0.0233154296875,
0.0634765625,
0.052490234375,
-0.00592041015625,
0.00238037109375,
-0.0174560546875,
0.058837890625,
0.0185546875,
0.0458984375,
0.10205078125,
0.03955078125,
-0.0296630859375,
0.048583984375,
-0.10009765625,
-0.0267333984375,
0.00384521484375,
-0.046875,
0.0057983... | 777 | 777 | |
Proving a generalization of Fermat's Little Theorem, involving the Euler phi function
March 14th 2012, 12:21 PM #1
Newbie
Joined
Mar 2012
From
Southeast Michigan
Posts
4
Proving a generalization of Fermat's Little Theorem, involving the Euler phi function
Here is a simplified idea of what I am workin... | 5 | [
-0.049072265625,
-0.0150146484375,
0.01556396484375,
0.0128173828125,
0.08349609375,
0.01202392578125,
0.109375,
0.0235595703125,
0.040283203125,
0.0167236328125,
0.0133056640625,
0.061279296875,
0.03564453125,
-0.0162353515625,
0.01007080078125,
0.01544189453125,
-0.0267333984375,
... | 778 | 778 | |
RE: st: RE: Bounded Inequality Constraints
Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, statalist.org is already up and running.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
RE:... | 5 | [
-0.09326171875,
0.0233154296875,
-0.006744384765625,
0.0037384033203125,
0.0263671875,
0.0986328125,
-0.053955078125,
0.058349609375,
-0.0458984375,
0.045166015625,
-0.0498046875,
0.0016326904296875,
0.004150390625,
0.0052490234375,
-0.04833984375,
0.028564453125,
-0.0016632080078125... | 779 | 779 | |
mathschallenge.net
Impossible Quadratic
Problem
Given that p and q are prime, prove that px^2 qx + q = 0 has no rational solutions.
Solution
From px^2 qx + q = 0 x
Suppose that x = m/n, where HCF(m,n) = 1.
Therefore, pm^2/n^2 qm/n + q = 0, so pm^2 qmn + qn^2 = 0.
Dividing through by m, we get pm qn + qn^2/m = 0.... | 4 | [
0.0296630859375,
0.038818359375,
0.0302734375,
0.08544921875,
-0.09423828125,
0.055419921875,
0.0849609375,
-0.02197265625,
0.06982421875,
-0.1064453125,
0.00102996826171875,
-0.0118408203125,
0.06982421875,
0.140625,
-0.052978515625,
-0.0020294189453125,
0.00177001953125,
-0.01696... | 780 | 780 | |
How To Create 3D Graphics Using Canvas
This topic covers a technique for manipulating a 3-dimensional object using HTML5’s canvas element.
Note To view the sample presented in this topic, you’ll need a browser, such as Windows Internet Explorer 9 or later, that supports the canvas element.
Suppose we want to visual... | 4 | [
-0.076171875,
-0.00946044921875,
-0.0751953125,
-0.07568359375,
0.05615234375,
-0.034912109375,
0.02587890625,
0.006591796875,
0.0576171875,
0.00689697265625,
-0.04248046875,
-0.00640869140625,
0.05029296875,
0.09716796875,
-0.036376953125,
0.0107421875,
-0.0262451171875,
-0.007812... | 781 | 781 | |
Initial Value Problems
September 2nd 2008, 01:48 PM #1
Junior Member
Joined
Apr 2008
Posts
26
Initial Value Problems
It's been awhile since I have had calculus and dealing with differential equations and initial value problems. Looking for some help with some easy problems.
Find the solution of the ... | 5 | [
-0.037841796875,
-0.0157470703125,
0.10595703125,
0.007171630859375,
0.01202392578125,
-0.0299072265625,
-0.033935546875,
0.0634765625,
-0.068359375,
0.059814453125,
0.1337890625,
-0.08154296875,
0.00994873046875,
-0.0238037109375,
0.01092529296875,
0.0186767578125,
-0.00909423828125... | 782 | 782 | |
Double Angle
November 10th 2008, 03:00 AM #1
Newbie
Joined
Nov 2008
Posts
17
Double Angle
hi i am really struggling with these 2 questions and any help would be deeply appreciated.
1. 2cos 2theta= 7 sintheta solve for 0<theta<2 pi, answer to one decimal
2. prove that
1 - tan squared theta /... | 4 | [
-0.0400390625,
0.0211181640625,
0.07763671875,
0.087890625,
-0.053955078125,
0.018798828125,
-0.037353515625,
-0.0028839111328125,
0.0242919921875,
0.047607421875,
0.06982421875,
-0.04296875,
-0.0380859375,
0.09716796875,
0.0086669921875,
-0.01336669921875,
-0.0302734375,
-0.003585... | 783 | 783 | |
isomorphic proofs
November 23rd 2006, 10:45 AM #1
Member
Joined
Nov 2006
Posts
142
isomorphic proofs
I need some help with these,
Prove that Z2 x Z3 is isomorphic with Z6.
Prove that Z6 is not isomorphic with S3, although both groups have 6 elements.
Thank you for any assistance.
Are yo... | 5 | [
-0.09130859375,
-0.015869140625,
-0.041015625,
-0.08056640625,
0.049560546875,
-0.060791015625,
0.03564453125,
-0.0029296875,
-0.0556640625,
-0.09130859375,
0.061279296875,
-0.005950927734375,
0.08740234375,
-0.10205078125,
0.0322265625,
0.0306396484375,
-0.03173828125,
0.042480468... | 784 | 784 | |
Homework Help
Posted by nikki on Thursday, January 20, 2011 at 3:17pm.
Which of the following sums is larger and by how much? (n=1)
Y1 = 7 over Σ 15/4(pi/10)^n
Y2= 11 over Σ 17/4(4/13)^n
• MATH - Reiny, Monday, January 24, 2011 at 10:38am
did you mean
Σ ((15/4) (π/10)^n , where n goes from 1 to 7 ?
... | 4 | [
-0.0537109375,
0.01275634765625,
0.023681640625,
0.0179443359375,
0.0030059814453125,
-0.0185546875,
0.0341796875,
0.07470703125,
-0.025146484375,
-0.0142822265625,
-0.033935546875,
0.0164794921875,
-0.0303955078125,
0.0947265625,
-0.015869140625,
0.047119140625,
-0.013916015625,
-... | 785 | 785 | |
Hyperbola
September 18th 2008, 12:37 PM
courteous
Hyperbola
Hyperbola is at the center of coordinate system. Its foci (?) are on abscissa. There are two points on the hyperbola; these are $T_1(\frac{3\sqrt5}{2},2)$ and $T_2(4,\frac{4\sqrt7}{9})$. What is
hyperbola's equation?
(I'm having trouble with sol... | 4 | [
0.031005859375,
-0.044921875,
-0.0106201171875,
-0.06689453125,
0.046142578125,
-0.06494140625,
-0.034912109375,
0.032470703125,
0.034423828125,
0.028564453125,
0.09228515625,
-0.027099609375,
-0.0218505859375,
0.0361328125,
-0.0240478515625,
0.057861328125,
-0.013671875,
-0.123535... | 786 | 786 | |
Pressure and Density Altitude
There are many occasions in which a pilot has to predict the performance of an aircraft—e.g., in planning a takeoff, in planning a climb over mountainous terrain, in predicting rates of fuel
consumption, and aircraft performance with respect to speed.
Generally, aircraft performance—in t... | 4 | [
0.021484375,
0.06396484375,
-0.0025787353515625,
0.05517578125,
-0.00299072265625,
-0.040283203125,
0.032958984375,
0.03564453125,
0.002349853515625,
-0.000179290771484375,
-0.037841796875,
-0.02734375,
-0.0184326171875,
-0.004302978515625,
0.0030517578125,
0.0111083984375,
0.0334472... | 787 | 787 | |
Homework Help
Posted by Anonymous on Thursday, November 14, 2013 at 9:48pm.
Solve for all values between zero and 360 degrees.
cos(theta-42 degrees)=-1
What is the general solution and what is the solution????
• Pre calculus - Reiny, Thursday, November 14, 2013 at 10:23pm
cos(Ø - 42°) = -1
I know cos 180... | 4 | [
-0.07080078125,
0.0078125,
-0.004180908203125,
-0.0022430419921875,
-0.04296875,
-0.03173828125,
-0.034423828125,
0.041015625,
-0.014892578125,
-0.0255126953125,
0.103515625,
-0.060302734375,
0.08203125,
0.007080078125,
0.050537109375,
-0.044189453125,
-0.08642578125,
-0.0805664062... | 788 | 788 | |
tough one to solve
I need help to verify if this is correct and I can't find the mistake can you? csc^2(2x)sin(x)tan(x)+2csc(x)cos(x)=sec(x)csc^2(2x )
Hello, talor! I need help to verify if this is correct and I can't find the mistake, can you? . . What "mistake" are you looking for? $\csc^2(2x)\sin(x)\tan(x)+2\csc(x)... | 5 | [
-0.0400390625,
0.0284423828125,
0.054931640625,
0.07470703125,
0.01116943359375,
0.05810546875,
0.048583984375,
-0.031982421875,
0.052978515625,
0.04443359375,
0.078125,
-0.076171875,
0.0035858154296875,
0.0252685546875,
-0.0017242431640625,
0.0206298828125,
0.01806640625,
0.045654... | 789 | 789 | |
Re: Regular Expression Question...
"Eric A. Anderson" <eanders+@CMU.EDU>
Wed, 15 Dec 1993 15:15:23 GMT
From comp.compilers
| List of all articles for th... | 5 | [
-0.04541015625,
-0.01446533203125,
0.08349609375,
0.007415771484375,
0.056396484375,
0.04150390625,
0.062255859375,
-0.0020904541015625,
0.0169677734375,
-0.021728515625,
-0.004119873046875,
-0.12060546875,
0.087890625,
0.06298828125,
0.068359375,
-0.016357421875,
-0.0081787109375,
... | 790 | 790 | |
How do I obtain percentiles for survey data?
How do I obtain percentiles for survey data?
Title Calculate percentiles with survey data
Author Nini Zang, StataCorp
Date January 2008
When we have survey data, we can still use pctile or _pctile to get percentiles. This is the case because survey characteristics, ... | 5 | [
-0.0537109375,
0.07275390625,
-0.04931640625,
0.051513671875,
-0.004180908203125,
-0.0625,
-0.00140380859375,
0.08740234375,
-0.050048828125,
0.0234375,
0.0025482177734375,
-0.0869140625,
-0.0076904296875,
-0.009765625,
0.025390625,
-0.08154296875,
0.015380859375,
0.033203125,
0.... | 791 | 791 | |
Solving Circular Motion Problems
Guide 6-3a. Solving Circular Motion Problems
animation by Behrooz Mostafavi
This is the first of two web pages on this subject.
Circular motion is one of those topics in physics that we can easily experience ourselves. Riding roller coasters, tilt-a-whirls, giant swings, the Starsh... | 4 | [
-0.003936767578125,
-0.03759765625,
-0.002044677734375,
-0.034423828125,
0.00518798828125,
-0.0194091796875,
-0.052490234375,
0.026611328125,
0.044677734375,
-0.0164794921875,
0.01220703125,
-0.039794921875,
0.004852294921875,
-0.0179443359375,
0.0179443359375,
-0.01611328125,
0.0209... | 792 | 792 | |
Simple probability question...
April 21st 2008, 04:16 AM
struck
Simple probability question...
Out of 20 components, 3 are defective. Two components are chosen at random from these 20 components. Determine the probability that they will both be defective.
I thought these are two independent events occurring... | 4 | [
0.0185546875,
0.018798828125,
0.08935546875,
0.00083160400390625,
0.06884765625,
-0.0113525390625,
0.034423828125,
0.031005859375,
0.04638671875,
0.068359375,
0.1279296875,
-0.012939453125,
0.09521484375,
0.051025390625,
0.02587890625,
-0.01019287109375,
-0.0712890625,
0.0241699218... | 793 | 793 | |
Solve for x.
April 11th 2012, 09:13 PM #1
Newbie
Joined
Mar 2012
From
Canada
Posts
3
Solve for x.
Given f(x) =(x)(e^(-x)), find x when f '''(x) - f ''(x)=0 I got solutions as x=0 & x= 3 and was wondering if that's the correct answer.
Re: Solve for x.
$f'''(x)=(3-x)\cdot e^{-x} ~\text { and }~ f... | 5 | [
-0.07275390625,
-0.0634765625,
0.0400390625,
-0.03271484375,
-0.002960205078125,
-0.0196533203125,
-0.00994873046875,
-0.0289306640625,
-0.0247802734375,
0.08740234375,
0.111328125,
-0.1533203125,
-0.01318359375,
-0.0810546875,
0.044921875,
-0.012939453125,
-0.0189208984375,
-0.040... | 794 | 794 | |
GMAT Math: Lines & Slope in the x-y plane
Here are a set of practice GMAT questions about the Cartesian plane.
1) What is the equation of the line that goes through (–2, 3) and (5, –4)?
1. y = –x + 1
2. y = x + 5
3. y = –3x/7 + 15/7
4. y = –4x/3 + 1/3
5. y = 9x/5 + 33/5
2) The line y = 5x/3 + b goes through the... | 4 | [
-0.09765625,
-0.0244140625,
-0.023681640625,
-0.0859375,
-0.041259765625,
-0.0037689208984375,
0.07568359375,
-0.006256103515625,
-0.00148773193359375,
0.07666015625,
-0.019775390625,
-0.068359375,
0.027099609375,
0.0595703125,
-0.04443359375,
0.11376953125,
-0.0966796875,
-0.02331... | 795 | 795 | |
The Mathematics of Tuning Musical Instruments
The Mathematics of Tuning Musical Instruments –
a Simple Toolkit for Experiments
Erich Neuwirth
University of Vienna
Summary:
This paper gives an overview of the (rather simple) mathematics underlying the theory of tuning musical instruments. Besides demonstrating the f... | 4 | [
-0.043701171875,
0.031982421875,
-0.0205078125,
-0.046142578125,
-0.16796875,
-0.00335693359375,
0.023193359375,
0.03955078125,
-0.0081787109375,
-0.0228271484375,
-0.0341796875,
-0.0361328125,
0.0595703125,
-0.056884765625,
-0.00543212890625,
0.0107421875,
-0.022216796875,
0.02783... | 796 | 796 | |
physics repost
Posted by Jon on Thursday, April 3, 2008 at 9:21am.
A player kicks a football with an initial velocity of 3.00 m/s at an angle of 60.0 above the horizontal. What is the horizontal distance traveled by the football?
2(3.00)(cos60)/9.80
(3.00)(cos60)(.530219635)
0.795m
________________________________... | 4 | [
0.03466796875,
0.0712890625,
-0.059326171875,
-0.048095703125,
0.013916015625,
0.095703125,
-0.10498046875,
0.0869140625,
0.032958984375,
0.04931640625,
0.06005859375,
-0.06689453125,
-0.04248046875,
0.0810546875,
0.0478515625,
0.04736328125,
-0.09375,
-0.00640869140625,
-0.09277... | 797 | 797 | |
Estimate of the population mean
May 12th 2007, 06:17 PM #1
Newbie
Joined
May 2007
Posts
8
Estimate of the population mean
Hello,everybody! I'll be glad if you help me!
Using the following data
30, 40, 50, 20, 20, 40.
construct 95% confidence interval estimate of the popolation mean.
Wha... | 5 | [
-0.0164794921875,
0.061767578125,
0.052001953125,
0.01092529296875,
-0.0458984375,
-0.0152587890625,
-0.0286865234375,
0.1474609375,
0.000873565673828125,
0.02490234375,
0.057373046875,
-0.060546875,
0.06787109375,
-0.0654296875,
0.031494140625,
-0.0277099609375,
0.037353515625,
-0... | 798 | 798 | |
Recursive Sequence Convergence
November 5th 2010, 01:10 AM #1
Newbie
Joined
Oct 2010
Posts
5
Recursive Sequence Convergence
$x_0 > x_1$ and r and s are positive numbers with p + q = 1. $x_n = px_{n-1} + qx_{n-2}$ for all $n \geq 2$. Prove that $(x_n)$ is convergent and find limits in terms of $x_0, x_1$,... | 4 | [
-0.103515625,
0.0013885498046875,
0.059814453125,
0.01300048828125,
-0.0625,
0.0361328125,
0.034912109375,
0.053955078125,
0.0322265625,
0.038330078125,
-0.10546875,
-0.00799560546875,
0.00072479248046875,
0.08203125,
-0.0302734375,
0.042236328125,
-0.0341796875,
-0.026123046875,
... | 799 | 799 |