content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Linear combinations?
February 13th 2006, 02:47 AM #1
Newbie
Joined
Jan 2006
Posts
6
Linear combinations?
I couldn't find the english word for "linear combination" so i hope there is such a word and that you understand what i mean.
Write gcd(4774,6851) = 31 as a linear combination of 4774 & 6851
... | 5 | [
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Please help--algebra!
Posted by Caroleen on Tuesday, January 6, 2009 at 5:45pm.
Here's the question I'm having trouble with. Please walk me completely through the question and give me the answer so I can thoroughly understand it, so I can solve similar problems in the future.
#1: Mary uses a secret code to write mess... | 4 | [
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... | 1,301 | 1301 | |
Prove natural number
April 25th 2009, 08:12 AM
usagi_killer
Prove natural number
Show that $\frac{9^y + 6 * 2^y}{21}$ is a natural number for all y, where y is a natural number. (Without using mathematical induction)
April 25th 2009, 08:31 AM
red_dog
Clearly, $9^y+6\cdot 2^y \ \vdots \ 3$
$9^y+6\cdot... | 4 | [
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Answer | GeekDad | Wired.com
GeekDad Puzzle of the Week Answer: How to Bullseye a Womp Rat
• By Garth Sundem
• 02.16.13
• 5:30 AM
Get ready for some serious puzzling. Basically this week’s puzzle asked you to calculate the probability of success of Luke’s shot at the Death Star exhaust port. First he had to sur... | 5 | [
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Homework Help
Posted by Mike on Tuesday, May 11, 2010 at 2:20am.
A supersonic plane flies directly over you at 1.8 times the sound speed. You hear its sonic boom 20s later.
What is the plane's altitude, assuming a constant 340 sound speed?
• Physics 203 - bobpursley, Tuesday, May 11, 2010 at 6:32am
height= ve... | 5 | [
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Homework Help
Posted by victoria on Sunday, March 27, 2011 at 8:02pm.
the polar-orbiting environmental satellites (POES) and some military satellites orbit at a much lower level in order to obtain more detailed information. POES complete an Earth orbit 14.1 times per
day. What are the orbital speed and the altitude of... | 5 | [
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-0.06591796... | 1,305 | 1305 | |
MathGroup Archive: April 2004 [00046]
[Date Index] [Thread Index] [Author Index]
Re: Re: Infrequent Mathematica User
• To: mathgroup at smc.vnet.net
• Subject: [mg47301] Re: [mg47244] Re: Infrequent Mathematica User
• From: DrBob <drb... | 4 | [
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-0.0... | 1,306 | 1306 | |
Homework Help
Posted by simranpreet on Monday, December 3, 2012 at 6:43am.
the sum of 3rd and 5th terms of an a.p is 38 and sum of 7th and 10th terms of an a.p is 83,find the a.p.
please help all questions please help please.
• maths - Praphul, Monday, December 3, 2012 at 7:47am
We have the formula a+(n-1)d=n... | 4 | [
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0.0... | 1,307 | 1307 | |
Shadow Problem
January 8th 2010, 08:10 AM
pokopikos
Shadow Problem
Didn't know if this was the right category to put this into but anyway.
I got the following problem. There is a lantern that has a height of 11 meters
a man with a height of 2.20 meters is standing at the lantern's base. The man starts m... | 5 | [
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Sum of convergent series
1. July 14th 2013, 06:59 AM #1
2. July 14th 2013, 07:34 AM #2
Re: Sum of convergent series
That is a collapsing sum: $\sum\limits_{n = 1}^\infty {\left( {\frac{1}{{(n + 1)(n + 2)}}} \right)} = \sum\limits_{n = 1}^\infty {\left( {\frac{1}{{(n + 1)}} - \frac{1}{{(n + 2)}}} \right)... | 4 | [
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st: How to calculate P values and I2 from estore after metareg?
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]
st: How to calculate P values and I2 from estore after metareg?
From "G Livesey" <glivesey@nlogic.co.uk>
To "'STATALIST'" <statalist@hsphsun2.harvard.edu>
Subject st: H... | 4 | [
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Free fall motion problem
July 12th 2009, 10:47 AM #1
Free fall motion problem
I started this and then got stuck I think it is my integral that caused the problem.
A 400 lb object is released from rest 500 ft above the ground and allowed to fall under the influence of gravity. Assuming that the force in pound... | 5 | [
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\documentclass[12pt,reqno]{article} \usepackage[usenames]{color} \usepackage{amssymb} \usepackage{graphicx} \usepackage{amscd} \usepackage[colorlinks=true, linkcolor=webgreen, filecolor=webbrown,
citecolor=webgreen]{hyperref} \definecolor{webgreen}{rgb}{0,.5,0} \definecolor{webbrown}{rgb}{.6,0,0} \usepackage{color} \us... | 5 | [
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Precalculus: Functions
A function is a special kind of relation that pairs each element of one set with exactly one element of another set. A function, like a relation, has a domain, a range, and a rule. The rule is the
explanation of exactly how elements of the first set correspond with the elements of the second set.... | 4 | [
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Peak Rectifiers - ExamCrazy.Com New user signup at ExamCrazy.com Exam Crazy
┌──────────────┐ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┬┐
│ Diode │ │ ... | 5 | [
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Prolog program to find GCDs and LCMs
The least common multiple (LCM) of two integers a, b is the smallest positive integer that is a multiple of both a and b.
Despite of the fact, there exist several formulas to calculate the LCM of two integers, most popular formula, especially to the programmers, is by using GCD of... | 4 | [
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Posts by
Total # Posts: 21
Physics
T = I a where T = torque, I = moment of inertia (= 2.5 kg m^2), a = angular acceleration (= 3 rad/s^2) The answer will have units of N m
Physics
k = 400 N/m x = 0.08 m F = k x w = k x m g = k x m = kx/g g = 9.8 m/s^2
Physics
Just as an aside: A car (at least, a car as we understan... | 5 | [
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Linear Approximations
This approximation is crucial to many known numerical techniques such as Euler's Method to approximate solutions to ordinary differential equations. The idea to use linear approximations rests in the
closeness of the tangent line to the graph of the function around a point.
Let x[0] be in the dom... | 5 | [
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Finding sum of infinite series
September 10th 2010, 08:43 PM #1
Newbie
Joined
Jul 2010
Posts
20
Finding sum of infinite series
Hi
I'm not sure if it belongs in calculus but here it is anyway:
Find the sum of $\displaystyle\sum_{i=1}^{\infty}\frac{i^2}{a^i}$ for a constant $a$
Wolframalpha y... | 5 | [
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Re: st: Output of ML for Poisson vs. Stata Poisson Command
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][Th... | 4 | [
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Proof using principle of strong induction
September 19th 2010, 03:48 PM #1
Junior Member
Joined
Sep 2009
Posts
42
Proof using principle of strong induction
Let the numbers x_n be defined as follows: x_1≔1, x_2≔2, and x_(n+2)=(1/2)((x_(n+1))+(x_n)) for all n∈N. Use the Principle of Strong Induction to sho... | 5 | [
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Homework Help
Posted by Brooke on Wednesday, November 7, 2012 at 10:18pm.
Jill made some cookies. Jill gave 1/4 of her cookies to Bob. Then Jill gave 1/2 of the remaining cookies to Joe. At this point, Jill had 18 cookies left. How many cookies did Jill have at first?
• Math - Many, Wednesday, November 7, 2012 at 1... | 4 | [
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Homework Help
Posted by Jacqueline on Wednesday, June 16, 2010 at 8:15pm.
In the diagram below, the length of the legs AC and BC of right triangle ABC are 6cm and 8cm, respectively.Altitude CD is drawm to the hypotenuse of triangle ABC.
what is the lenght of AD to the nearest tenth of a centimeter?
• geometry - Da... | 4 | [
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Epsilon-proof as x->-infinity currently defeating me
December 23rd 2010, 04:31 PM
Grep
Epsilon-proof as x->-infinity currently defeating me
I think Epsilon-delta proofs and I should spend some quality time together.
The problem is I need to prove that:
$\lim_{x \to -\infty} a^x = 0$
So, I need to ... | 5 | [
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Proof by induction
September 20th 2008, 03:31 AM #1
Newbie
Joined
May 2008
Posts
3
Proof by induction
I have been asked to prove that (1*1!)+(2*2!)+(3*3!)+ ... + (n*n!) is always = to (n+1)!-1 for all positive intergers using proof by induction. If anyone could help me on this one i would be most
tha... | 5 | [
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MathGroup Archive: July 2004 [00143]
[Date Index] [Thread Index] [Author Index]
Re: sorting polynomials by the degree of certain terms
• To: mathgroup at smc.vnet.net
• Subject: [mg49231] Re: [mg49202] sorting polynomials by the degree ... | 5 | [
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Homework Help
Posted by George on Wednesday, September 25, 2013 at 10:18pm.
A 5 foot tall woman stands 15ft from a statue. She must look up at an angle of 60 degrees to see the top of the statue. How tall is the statue?
• Geometry - The Profesor, Wednesday, September 25, 2013 at 10:38pm
Just set it up like a r... | 4 | [
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Homework Help
Posted by brittney on Sunday, January 8, 2012 at 11:21am.
A river is 2000 ft wide and flowing at 6 mph from north to south. A woman in a canoe starts on the eastern shore and heads west at her normal paddling speed of 2 mph. In what direction (measured
clockwise from north) must she aim her canoe? How lo... | 4 | [
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-0.035888671875,
0.0115966796875,
-0.041259765... | 1,327 | 1327 | |
RE: st: Nonlinear model using maximum likelihood
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RE: st: Nonlinear model using maximum likelihood
From jverkuilen <jverkuilen@gc.cuny.edu>
To <statalist@hsphsun2.harvard.edu>
Subject RE: st: Nonlinear model using maximum likelihood
... | 4 | [
-0.042724609375,
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0.06005859375,
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0.10791015625,
0.001556396484375,
-0.005... | 1,328 | 1328 | |
math,(fraction)
Posted by Da S on Tuesday, December 27, 2011 at 12:26am.
there were 25pupils in a class. they had 135 books altogether. two-fifth of the pupils were girls.they had the same number of books each. the remaining pupils were boys.each boy had one-third as many
as each girl.how many books did each girl have... | 4 | [
-0.004730224609375,
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0.09619140625,
0.0308837890625,
0.006866455078125,
-0.01361083984375,
-0.01104736328... | 1,329 | 1329 | |
Homework Help
Posted by Gina on Tuesday, October 24, 2006 at 5:14pm.
determine the area of triangle abc when side ab= square root of x, side bc= square root of x, and side ca= the square root of the square root of x.
So how do I solve it. How do I add the square root of x + the square root of x + the square root of t... | 4 | [
-0.00125885009765625,
0.03466796875,
0.02978515625,
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0.011474609375,
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0.0263671875,
0.020751953125,
0.04052734375,
0.00958251953125,
-0.052734375,
0.0137... | 1,330 | 1330 | |
Solving Rational InequalitiesAlgebraLAB: Lessons
A
rational expression
looks like a
fraction
and has a
variable
in the denominator. A rational
inequality
just means we now have a
rational expression
combined with a
inequality
might look like.
Solving rational inequalities requires the same initial step as ... | 4 | [
-0.0693359375,
0.044921875,
0.042236328125,
0.031982421875,
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0.052978515625,
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0.11279296875,
0.0152587890625,
0.04833984375,
0.0015106201171875,
-0.03149414... | 1,331 | 1331 | |
Proving Convergence
May 5th 2008, 03:07 AM #1
Member
Joined
Mar 2008
Posts
91
Proving Convergence
Let (
an) be a sequence which converges to 0. Use the definition of a convergent sequence to prove that the sequence (an^2) to 0.
Definition: There exists an L that is Real s.t. for every E>0 there... | 4 | [
-0.00299072265625,
0.04736328125,
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0.03955078125,
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0.0279541015625,
-0.0020904541015625,
-0.0291748046875,
0.052001953125,
-0.03... | 1,332 | 1332 | |
Special Relativity: Dynamics
Problem : Find the inner product of the 4-momenta for the following two particles: a particle of mass m moving with speed in the lab frame and a particle of mass M moving with velocity also in the
lab frame.
Because the inner product is invariant it does not matter which frame we work in, ... | 5 | [
0.03466796875,
-0.0091552734375,
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0.05078125,
0.0299072265625,
... | 1,333 | 1333 | |
Right Triangle Trig. ?
April 2nd 2008, 05:43 PM #1
i dont know how to do these that involve using trig identities to transform one side to the other...
1. (1+ cos [theta]) (1-cos [theta]) = sin^2 [theta].
2. sin [theta]/ cos [theta] + cos [theta]/ sin [theta] =csc [theta] sec [theta]
3. Tan [theta] +... | 4 | [
-0.043701171875,
0.0546875,
-0.00579833984375,
0.028076171875,
0.003173828125,
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0.0634765625,
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0.033935546875,
0.041015625,
0.0654296875,
-0.04052734375,
0.041015625... | 1,334 | 1334 | |
Matrices and multiplication commutativity
June 24th 2008, 07:15 AM #1
Newbie
Joined
Jun 2008
Posts
2
In a proof I am studying a step uses a propriety of matrices I do not know, doing some tries it seems true but I can't find a way to prove it.
I'll use some almost-LaTeX
v \in R^{n \times 1}
... | 4 | [
-0.03271484375,
-0.000545501708984375,
-0.043212890625,
0.0101318359375,
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-0.099609375,
0.00653076171875,
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0.0537109375,
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0.119140625,
0.0361328125,
0.033935546875,
-0.01422119140625,
0.0859... | 1,335 | 1335 | |
Calculate the points of an isosceles triangle using the sides
November 2nd, 2007, 11:21 AM #1
56
posts
Registered User
-- edit // I meant to say calculate the 'angles' of an isosceles triangle using the sides (not points) // --
Ok, I'm going to kind of step-by-step this one and post as I come up with new info... | 4 | [
-0.045654296875,
0.05517578125,
-0.00396728515625,
-0.031494140625,
-0.076171875,
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0.06787109375,
-0.049560546875,
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0.041259765625,
-0.08984375,
0.01239013671875,
0.05908203125,
0.01806640625,
-0.0108642578125,
-0.1259765625,
0.0095214... | 1,336 | 1336 | |
Problem 5
A group of 5 men and 3 women are to be seated around a circular table. In how many different ways can they be arranged so that no women are seated next to one another?
[Problem submitted by Roger Wolf, LACC Chairman of Mathematics.]
Solution for Problem 5:
Let... | 4 | [
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0.02978515625,
-0.0047607421875,
-0.0258... | 1,337 | 1337 | |
Multiple Regression Model
Two scenarios may warrant transformation of variables to standardized form, where Y[i] and X[ik] are converted to
Y[i]’ = [][] = []
and X[ik]’ = [][] = []
where s[Y] = [] and [] ... | 4 | [
0.0106201171875,
-0.0380859375,
-0.050048828125,
0.021240234375,
0.05859375,
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0.07177734375,
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0.04345703125,
-0.0169677734375,
-0.0634765625,
0.0498046875,
0.040039... | 1,338 | 1338 | |
Homework Help
Posted by Shelagh on Wednesday, June 18, 2014 at 7:30pm.
Four coins fall onto the floor. Find the probability that
(a) exactly three coins land heads up
(b) all coins land tails up
(c) two or more coins land heads up
(d) no more than two coins land tails up
(e) at least one coin lands tails up
• ... | 4 | [
0.0966796875,
0.042724609375,
0.006927490234375,
-0.10400390625,
0.0167236328125,
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0.0361328125,
0.045166015625,
0.00390625,
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-0.009765625,
0.05126953125,
0.05078125,
-0.0233154296875,
-0.03125,
-0.... | 1,339 | 1339 | |
MathGroup Archive: June 2007 [00801]
[Date Index] [Thread Index] [Author Index]
Re: bad performance of Reduce (5.2)
• To: mathgroup at smc.vnet.net
• Subject: [mg77800] Re: [mg77773] bad performance of Reduce (5.2)
• From: Andrzej Koz... | 5 | [
-0.13671875,
0.09130859375,
0.032470703125,
0.068359375,
0.0673828125,
-0.049560546875,
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0.058349609375,
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0.0341796875,
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0.017822265625,
-0.0277099609375,
-0.01318359375,
-0.0296630859375,
0.023... | 1,340 | 1340 | |
Can someone just explain this to me please?
September 15th 2009, 05:23 AM #1
Senior Member
Joined
Jan 2009
Posts
296
Can someone just explain this to me please?
R is the region bounded below by y=x^2 and above by y=1. Suppose a solid has base R and the cross-sections of the solid perpendicular to the y-a... | 5 | [
0.043701171875,
-0.015869140625,
0.06982421875,
-0.053955078125,
-0.0279541015625,
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-0.041259765625,
0.0703125,
-0.0517578125,
-0.006988525390625,
-0.0869140625,
0.051513671875,
0.0228271484375,
0.11572265625,
-0.058837890625,
-0.01043701171875,
0.030517578125,
... | 1,341 | 1341 | |
Algebra II: Functions
Domain
The domain of a relation (or of a function) is the set of all inputs of that relation. For example, the domain of the relation (0, 1),(1, 2),(1, 3),(4, 6) is x=0, 1, 4 . The domain of the following
mapping diagram is -2, 3, 4, 10 :
Mapping Diagram
The domain of the following graph is :
... | 4 | [
-0.0286865234375,
-0.05126953125,
-0.07080078125,
-0.03857421875,
-0.07080078125,
-0.0703125,
-0.062255859375,
0.032470703125,
0.06640625,
-0.035400390625,
-0.0035552978515625,
0.0086669921875,
0.052490234375,
0.041015625,
0.06005859375,
-0.022216796875,
-0.0218505859375,
-0.066894... | 1,342 | 1342 | |
Problem
Introduction to Artificial Intelligence: Problem Set 2
Assigned: Jan. 24
Due: Jan. 31
Problem 1
The MAP-COLORING problem is defined as follows: Given a map of countries, and a fixed set of colors, assign a color to each region in the map in such a way that no two adjacent regions have the same
color. For ex... | 5 | [
0.0751953125,
0.0859375,
0.09423828125,
-0.080078125,
-0.0286865234375,
0.0133056640625,
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0.00555419921875,
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0.1337890625,
-0.05615234375,
-0.037353515625,
-0... | 1,343 | 1343 | |
Re: st: Fitting the logistic curve to a time-series
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]
Re: st: Fitting the logistic curve to a time-series
From Maarten buis <maartenbuis@yahoo.co.uk>
To statalist@hsphsun2.harvard.edu
Subject Re: st: Fitting the logistic curve to a time-... | 5 | [
-0.03759765625,
-0.04443359375,
-0.0233154296875,
0.042236328125,
-0.052001953125,
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0.076171875,
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0.0030670166015625,
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0.044189453125,
-0.0245361328125,
-0.03857421875,
-0.05029296875,
... | 1,344 | 1344 | |
Question regarding locus of midpoint of chord of circle.
October 28th 2013, 09:35 PM #1
Junior Member
Joined
Oct 2013
From
Singapore
Posts
57
Thanks
9
Question regarding locus of midpoint of chord of circle.
Hi everyone. The full question is as follows:
A circle passes through $A(0,3), B(\sq... | 4 | [
-0.01055908203125,
-0.03662109375,
-0.02880859375,
-0.05078125,
0.0242919921875,
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0.02880859375,
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0.09423828125,
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-0.052734375,
0.039306640625,
0.125,
-0.06201171875,
-0.03271484375,
-0.03173... | 1,345 | 1345 | |
Correlation between factors
4.2. Correlation between factors
One of the problems with multiple regression is that factors may be correlated. For example, temperature is highly correlated with precipitation. If factors are correlated, then it is impossible to
separate the effect of different factors. In particular, reg... | 5 | [
-0.01409912109375,
-0.0000743865966796875,
0.041015625,
0.1005859375,
0.055908203125,
0.0693359375,
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0.01116943359375,
0.02587890625,
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0.0169677734375,
0.048828125,
0.0076904296875,
0.00347900390625,
-0.009765625,
0... | 1,346 | 1346 | |
The Cap-Set Problem and Frankl-Rodl Theorem (C)
Update: This is a third of three posts (part I, part II) proposing some extensions of the cap set problem and some connections with the Frankl Rodl theorem. Here is a post presenting the problem on
Terry Tao’s blog (March 2007). Here is an open discussion post around Roth... | 4 | [
-0.0172119140625,
0.0003299713134765625,
0.045166015625,
-0.0250244140625,
0.07080078125,
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0.031982421875,
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0.00604248046875,
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0.016845703125,
0.0277099609375,
-0.00147247314453125,
0.017578125,
-0.0208740234375,
0.00055313... | 1,347 | 1347 | |
Homework Help
Posted by Thomas on Tuesday, May 29, 2012 at 4:08pm.
find the critical points, inflection points, the absolute minimum value of y, and the relative maximum points of y=x^4-3x^2+2
• ap calculus - Reiny, Tuesday, May 29, 2012 at 5:06pm
dy/dx = 4x^3 - 6x
= 0 for max/mins
2x(2x^2 - 3) = 0
... | 4 | [
-0.004852294921875,
-0.0400390625,
-0.04541015625,
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0.07275390625,
0.027099609375,
-... | 1,348 | 1348 | |
fourier transform of DE
April 5th 2010, 04:09 AM
nameck
fourier transform of DE
hey there.. i really dont know how to start answering this question.. can someone please guide me to solve this question..
http://i99.photobucket.com/albums/l3...ck_5/maths.jpg
April 5th 2010, 06:50 AM
shawsend
Hi. Start... | 5 | [
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0.000850677490234375,
-0.00823974609375,
-0.02136230... | 1,349 | 1349 | |
Field of characteristic p. automosphism.
May 6th 2012, 08:18 AM #1
Field of characteristic p. automosphism.
Let $F$ be a field of characteristic $p eq 0$. Let $K$ be an extension of $F$. Define $T= \{ a \in K : a^{p^n} \in F \text{ for some } n \}$.
a) Prove that $T$ is a subfield of $K$.
b) Show that any... | 5 | [
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0.07666015625,
-0.080078125,
0... | 1,350 | 1350 | |
differentiability and continuity
November 18th 2010, 08:41 AM #1
Newbie
Joined
Sep 2010
Posts
24
differentiability and continuity
(a) Suppose that $f: \Re\rightarrow\Re$is differentiable and, that $f(x)/x\rightarrow 0$ as $x\rightarrow\infty$. Prove that, if $f'(x)\rightarrow k$ as $x\rightarrow\infty$, ... | 5 | [
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0.0576171875,
... | 1,351 | 1351 | |
Homework Help
Posted by Ann on Monday, May 20, 2013 at 5:47pm.
Fantasia Florist Shop purchases an order of imported roses with a list price of $2,375 less trade discounts of 15/20/20. What is the dollar amount of the trade discount?
Answer: 1306.25
4. Using your answer to the question above, what is the net dollar a... | 4 | [
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0.036376953125,
-0.0673828125,
-0.... | 1,352 | 1352 | |
trig identity
April 4th 2009, 09:23 PM #1
trig identity
Can someone tell me if this is correct
sin(2t)cos(2t) = 1/4sin(4t)
This is my reasoning
sin(2t) = 2sin(t)cos(t) yes?
sin(4t) = 4sin(t)cos(t) yes?
therefore 1/4sin(4t) = sin(t)cos(t)
You're almost there...but you're answer is incorre... | 4 | [
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0.040283203125,
0.0390625,
0.004058837890625,
-0.023681640625,
0.0... | 1,353 | 1353 | |
t
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┯━━┓
┃ In this circuit, there is a pulse, a resistor, and a capacitor. │ ┃
┃ Assume here that the pulse goes from 10V down to 0V at t=0. │ ┃
┃ ... | 5 | [
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0.0341796875,
-0.0005073547... | 1,354 | 1354 | |
Homework Help
Posted by kathryn on Saturday, April 20, 2013 at 5:54pm.
1. Ms.lynch has 21 coins in nickels and dimes. Their total value is $1.65. How many of each coin does she have?
2. A vending machine that takes only dimes and quarters contains 30 coins, with a total value of $4.20. How many of each coin are there... | 4 | [
0.004058837890625,
0.08203125,
0.0002613067626953125,
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Poisson process probabilites
April 23rd 2010, 03:32 AM #1
Member
Joined
Feb 2008
Posts
184
Poisson process probabilites
A shop opens at 9am and shuts at 5pm. While the shop is open customers arrive as a Poisson process of rate 20 per hour.
a) Calculate the following probabilities:
i) P(no custo... | 5 | [
-0.01611328125,
0.034423828125,
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0.0286865234375,
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0.0289306640625,
-0.0334472... | 1,356 | 1356 | |
Homework Help
Posted by Math on Monday, January 6, 2014 at 7:21pm.
The area of a cylinder is 956m3. If the circular top is halved, what is the new volume?
• Math - Reiny, Monday, January 6, 2014 at 8:26pm
Your question is rather vague.
When you say that the circular top is halved, are you taking half of th... | 4 | [
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Cauchy/convergent sequence
October 17th 2011, 08:22 PM #1
Newbie
Joined
Oct 2010
Posts
24
Cauchy/convergent sequence
Question: Let {a_n} be a sequence of rational numbers defined as follows:
a_1 = 1
a_(n+1)=a_n + 1/(3^n)
for all n > 1.
1) Show that {a_n} is a Cauchy sequence and hence ... | 5 | [
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equations intersections
November 13th 2009, 01:16 AM #1
Member
Joined
Aug 2009
Posts
211
equations intersections
hi, my question is: find the equations of the tangents to the curve with equation $y = (x + 1)(5 - x)$ at the points P(-1, 0) and Q(5, 0). prove that these two tangents intersect at the point ... | 4 | [
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Uniform Convergence of Inegral
Prove that the integral $\int_{0}^{1}\frac{\sin\alpha x}{\sqrt{|x-\alpha|}}\,dx$ converges uniformly for $\alpha\in[0,1]$.
I'm not sure what "converges uniformly" means in this situation. Absolute convergence, as in the integral of the absolute value of the function converges? If so, the... | 5 | [
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Custom Search
back to Kinetics and Equilibrium links
At a constant temperature, the amount of a given gas dissolved in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid.
... | 4 | [
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Equation of the Line of Intersection of two Planes Help
June 10th 2008, 07:33 AM #1
Problem:
Determine a vector equation of the line of intersection of the planes $3x-y+4z-2=0$ and $x+6y+10z+8=0$.
Answer(from textbook):
Answers may vary.
$[x,y,z]=[2,0,-1]+t[34,26,-19]<br />$
Comments:
... | 5 | [
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SparkNotes: Geometry: Coordinate Grids
Coordinate Grids
Every math concept covered so far can be placed on a coordinate grid. Standard two-dimensional coordinate grids are set up with a horizontal x-axis and a vertical y-axis. The place where these lines
meet is the origin. At the origin, x = 0 and y = 0. Values of x ... | 4 | [
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SparkNotes: SAT Subject Test: Math Level 1: Math IC Algebra Strategies
5.1 Math IC Algebra Strategies 5.8 Common Word Problems
5.2 Writing Equations 5.9 Logarithms
5.3 Manipulating Equations 5.10 Polynomials
5.4 Zero Product 5.11 Key Formulas
5.5 Absolute Value 5.12 Re... | 4 | [
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The Hewlett Foundation: Automated Essay Scoring
Completed • $100,000 • 155 teams
Fri 10 Feb 2012
– Mon 30 Apr 2012 (2 years ago)
• 7 months ago
• 10 months ago
• 19 months ago
• 2 years ago
• 2 years ago
• 2 years ago
Evaluation
Essay score predictions are evaluated using objective criteria.
S... | 4 | [
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Hand of Salvation Analysis (8/21/08)
08-21-2008 04:01 PM #2
Late to the party
Join Date
Aug 2008
Posts
505
08-21-2008 08:27 AM #1
Blessing of Salvation, the paladin's current form of reducing threat provides a flat, 30% threat reduction on all generated threat (without affecting the threat accumulated be... | 4 | [
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... | 1,366 | 1366 | |
Algebraic Expression
February 6th 2007, 05:50 PM #1
Newbie
Joined
Feb 2007
Posts
2
Algebraic Expression
I have absolutely no idea how to work out the algebraic expression(s) to solve this problem.
2 times x is subtracted from 200. The difference is then increased by 20%. If the overall result is equ... | 4 | [
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Homework Help
Posted by Anonymous on Monday, April 4, 2011 at 9:50am.
"Using Lagrange multipliers, find the maximum value of f(x,y) = x + 3y + 5z subject to the constraint x^2 + y^2 + z^2 = 1."
Any help would be appreciated!
• Calculus - MathMate, Monday, April 4, 2011 at 4:55pm
This can be solved by geometry... | 5 | [
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Letter arrangement
October 30th 2012, 08:58 AM
ayushdadhwal
Letter arrangement
onsider
A B C
D
E F G
H
I J K
Here each letter represent a box (identical)( there are 5 rows and 11 boxes) .
Q in how many ways we can put put the alphabets of word LETTER so that no row remain empty.each b... | 4 | [
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-0.05346679687... | 1,369 | 1369 | |
tutorial
These SAS statistics tutorials briefly explain the use and interpretation of standard statistical analysis techniques for Medical, Pharmaceutical, Clinical Trials, Marketing or Scientific Research.
The examples include how-to instructions... | 5 | [
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... | 1,370 | 1370 | |
Homework Help
Posted by Tim on Sunday, April 5, 2009 at 2:29pm.
If 1500 square centimeters of material is available to make a box with a square base and an open top, find the largest possible volume of the box.
Volume =
• Math Calc - Reiny, Sunday, April 5, 2009 at 4:02pm
let the base be x cm by x cm, and the... | 4 | [
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Homework Help
Posted by Anonymous on Wednesday, September 8, 2010 at 10:46pm.
the base of a triangle is 2 cm shorter than the width of a rectangle. The rectangle's length is 4 times its width and the triangle's height is the same as the rectangle's length. find the area of
both figures if the difference of the two are... | 4 | [
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0.0... | 1,372 | 1372 | |
Mode competitions and dynamical frequency pulling in Mie nanolasers: 3D ab-initio Maxwell-Bloch computations
« journal navigation
Mode competitions and dynamical frequency pulling in Mie nanolasers: 3D ab-initio Maxwell-Bloch computations
Optics Express, Vol. 16, Issue 12, pp. 8342-8349 (2008)
http://dx.doi.org/10.13... | 4 | [
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[SOLVED] Finding areas
February 9th 2009, 08:11 PM #1
Newbie
Joined
Feb 2009
From
NH
Posts
6
[SOLVED] Finding areas
Hi I need some more help with word problems. I don't know if I can get some help because there are drawings that go with it but I'll explain them as best as I can. Or maybe just some id... | 4 | [
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-0.07... | 1,374 | 1374 | |
Homework Help
Posted by Catherine on Monday, October 31, 2011 at 4:07pm.
Consider the production function Q= 20K^(1/2)L^(1/2). The firm operates in the short run with 16 units of capital.
a. The firm's short-run production function is Q=?
b. The average product of labor function is AP=?
c. The marginal product of l... | 5 | [
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0.... | 1,375 | 1375 | |
Homework Help
Posted by rick on Saturday, January 1, 2011 at 12:58am.
how much money would have to be invested in an account at 3.98% annual interset to achieve a balance of 25,000 in 17 years if
a. The account pays simple interest
b. the account compound interest qrtly
c. the account compounds interest continuousl... | 4 | [
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Finding instantaneous rate of exponetial equation using (a+h)-(a)/h method
February 26th 2011, 07:01 PM #1
Junior Member
Joined
Feb 2011
Posts
58
Finding instantaneous rate of exponetial equation using (a+h)-(a)/h method
Estimate the instantaneous rate of change in the equation 18999(0.93)^t when a = 5
... | 4 | [
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0.00595... | 1,377 | 1377 | |
Homework Help
Posted by Jay on Tuesday, November 15, 2011 at 8:24am.
Input x 2 output y=17, input x 4 output y=28, input x 6 output y=42, what is the rule for the table?
• Math - Reiny, Tuesday, November 15, 2011 at 8:40am
2 17
4 28
6 42
The points (2,17), (4,28), and (6,42) do not lie in a straig... | 4 | [
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0.... | 1,378 | 1378 | |
Homework Help
Posted by Anonymous on Wednesday, February 13, 2013 at 7:40am.
In a pet store there are 4 more cats than dogs and the ratio of cats to dogs is 12 to 9.What is the total number of cats and dogs in the pet store ?
• Algebra - Bosnian, Wednesday, February 13, 2013 at 8:00am
Remark:
12 = 4 * 3
... | 4 | [
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Homework Help
Posted by Brittany on Friday, May 24, 2013 at 2:38pm.
The functions f(θ) and g(θ) are sine functions, where f(0) = g(0) = 0.
The amplitude of f(θ) is twice the amplitude of g(θ). The period of f(θ) is one-half the period of g(θ). If g(θ) has a period of 2pi and f (pi/4) = 4, write the function rule for ... | 4 | [
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Regression Analysis
Interpreting a Regression Analysis
What is regression analysis?
Regression analysis is a statistical technique for studying linear relationships. ^[1] It begins by supposing a general form for the relationship, known as the regression model:
Y = α + β[1]X[1] +...+ β[k]X[k] + ε .
Example: In the ... | 5 | [
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0.000949... | 1,381 | 1381 | |
Homework Help
Posted by Ian on Tuesday, August 28, 2012 at 10:11pm.
I need help on this homework question
KL and KJ are opposites rays.Angle 1 is congruent to angle 2 and KM bisects angle NKL.If angle JKN=9x+5 and angle MKL=2x+3,what is angle MKN?
Please help me....
• geometry - Steve, Wednesday, August 29, 2012 ... | 4 | [
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... | 1,382 | 1382 | |
scipy.stats.spearmanr
>>> spearmanr([1,2,3,4,5],[5,6,7,8,7])
(0.82078268166812329, 0.088587005313543798)
>>> np.random.seed(1234321)
>>> x2n=np.random.randn(100,2)
>>> y2n=np.random.randn(100,2)
>>> spearmanr(x2n)
(0.059969996999699973, 0.55338590803773591)
>>> spearmanr(x2n[:,0], x2n[:,1])
(0.059969996999699973, 0.553... | 5 | [
-0.009765625,
-0.07177734375,
-0.00927734375,
-0.0244140625,
0.0267333984375,
-0.1240234375,
-0.0546875,
-0.034423828125,
-0.059814453125,
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0.025146484375,
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-0.0301513671875,
0.060302734375,
-0.0008697509765625,
0.01025390625,
-0.10400390625,
-0.0... | 1,383 | 1383 | |
Homework Help
Posted by Alexis on Tuesday, November 13, 2012 at 11:22pm.
Find the derivatives of these:
f(x)=(√(x))sinPix
Also:
f(x)=√(Cosx+sinx)
Steps would be greatly helpful as I will be able to use them as reference. Thank you.
• Maths - just walked by, Tuesday, November 13, 2012 at 11:35pm
f'(x)=(√(x)... | 5 | [
-0.0478515625,
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0.060302734375,
0.03564453125,
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0.021484375,
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0.043212890625,
0.1015625,
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0.07666015625,
-0.006744384765625,
-0.01507568359375,
0.019775390625,
-0.061767578125,
0.01623... | 1,384 | 1384 | |
Confidence interval
October 8th 2008, 06:59 AM
approx
Confidence interval
Suppose that a random variable Y has a gamma distribution w. parameters $\alpha = 2$ and an unknown $\beta$. We have earlier proved that $2Y/\beta$ has a chi-square distribution w. 4 df. Using
$2Y/\beta$ as a pivotal quantity. derive ... | 5 | [
-0.0052490234375,
0.005157470703125,
0.015625,
-0.0106201171875,
-0.00750732421875,
-0.03369140625,
-0.043212890625,
0.01531982421875,
-0.0458984375,
0.006195068359375,
0.05859375,
0.0174560546875,
0.05615234375,
0.00482177734375,
0.09521484375,
0.0517578125,
0.01806640625,
-0.0678... | 1,385 | 1385 | |
maths (exponents
Posted by shivani on Sunday, June 29, 2014 at 5:45am.
if abc=1 prove that 1/(1+a+b^-1) + 1/(1+b+c^-1) +1/(1+c+a^-1) =1
• maths (exponents - Steve, Sunday, June 29, 2014 at 4:32pm
Well, just using brute force, we have
b/(b+ab+1) + c/(c+bc+1) + a/(a+ac+1)
expand all that over a common ... | 4 | [
-0.07177734375,
0.0238037109375,
0.0751953125,
0.08740234375,
-0.01318359375,
-0.0247802734375,
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0.00836181640625,
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0.024658203125,
-0.068359375,
0.08251953125,
-0.0299072265625,
0.016723... | 1,386 | 1386 | |
Basic Group Question
December 14th 2011, 10:39 AM #1
Junior Member
Joined
Dec 2011
Posts
27
Thanks
1
Basic Group Question
Let S be a non-empty set with a binary operation that satisfies the following:
1) the operation is associative
2) there exists a right sided identity
3) there exists ... | 5 | [
-0.1015625,
0.022216796875,
0.02783203125,
0.0673828125,
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0.06396484375,
0.0162353515625,
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0.06298828125,
-0.051025390625,
0.053955078125,
0.016845703125,
-0.00933837890625,
0.0383300... | 1,387 | 1387 | |
Area of shaded region
May 7th 2008, 03:25 PM
zsig013
Area of shaded region
I posted a question similar to this a minute ago, but I wanted to double check and make sure I'm doing it right. The question is find the shaded region of $7x(x^2-64)$ There is a picture, but I
can't display it here. The bounds are 0 ... | 5 | [
0.07421875,
0.00159454345703125,
0.0272216796875,
0.0181884765625,
-0.0732421875,
-0.051025390625,
-0.042236328125,
0.055419921875,
0.00299072265625,
-0.022216796875,
0.026123046875,
0.0264892578125,
0.06640625,
0.03369140625,
0.0011749267578125,
0.00193023681640625,
-0.0361328125,
... | 1,388 | 1388 | |
e
How to solve a triangle given two sides and the angle between them.
This topic is part of the TCS FREE high school mathematics 'How-to Library'. It shows you how to find the unknown angles of a triangle when given two sides and the angle between them... | 4 | [
-0.13671875,
0.083984375,
-0.040771484375,
0.0201416015625,
-0.014892578125,
-0.0255126953125,
-0.0213623046875,
0.00102996826171875,
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0.033447265625,
-0.01385498046875,
-0.064453125,
0.01324462890625,
0.0240478515625,
0.0673828125,
-0.048095703125,
-0.1171875,
0.... | 1,389 | 1389 | |
properties of logarithms
February 23rd 2010, 06:28 AM #1
Newbie
Joined
Feb 2010
Posts
13
properties of logarithms
I have the expression $4log_{3}\sqrt[2]{x}-4log_{3}x$. In simplifying the first term I need to get rid of the square root and change the coefficient of 4 to an exponent. So if I get rid of th... | 4 | [
0.1015625,
-0.115234375,
-0.037841796875,
-0.011474609375,
-0.000885009765625,
-0.115234375,
0.01611328125,
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0.099609375,
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0.035400390625,
0.0576171875,
-0.0272216796875,
0.035888671875,
0.06640625,
0.1318359375,
-0.068359375,
0.06005859375,
-0.081... | 1,390 | 1390 | |
Re: st: Analyzing a subpopulation in Stata 10.1
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: st: Analyzing a subpopulation in Stata 10.1
From jpitblado@stata.com (Jeff Pitblado, StataCorp LP)
To statalist@hsphsun2.harvard.edu
Subject Re: st: Analyzing a subpopulation in Stata... | 4 | [
-0.054443359375,
0.01806640625,
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0.032958984375,
-0.00823974609375,
-0.0023193359375,
-0.0556640... | 1,391 | 1391 | |
Simple antiderivative question...
March 9th 2009, 12:38 PM #1
Member
Joined
Oct 2008
Posts
242
Simple antiderivative question...
How do you take the antiderivative of something to the -1 power? Specifically I'm working with (12-10x)^-1. Using normal antideriv rules it would just be (12-10x)^0/0, which is... | 5 | [
-0.0201416015625,
0.01953125,
0.0732421875,
-0.005889892578125,
0.03857421875,
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0.07470703125,
-0.080078125,
-0.00921630859375,
0.0064697265625,
-0.0385... | 1,392 | 1392 | |
particles
November 26th 2008, 12:07 AM #1
Banned
Joined
Nov 2008
Posts
46
particles
A particle is moving along a straight trajectory. The distance covered by a particle is described by the function S(t) = 2t^3 + 5t^2 , where t > 0 is the time.
a)What is the distance covered by the particle by time t... | 5 | [
0.0181884765625,
0.0498046875,
0.06201171875,
-0.0223388671875,
-0.0272216796875,
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-0.000934600830078125,
-0.0849609375,
0.01116943359375,
0.00189208984375,... | 1,393 | 1393 | |
Homework Help
Posted by jimmy on Sunday, July 22, 2012 at 5:11pm.
The Better Businesss Bureau reports that they resolve 70% of the consumer complaints they receive.
a) if a random sample of 5 consumer complaints is selected, what is the probability that all 5 were resolved?
b)if a random sample of 5 consumer complai... | 4 | [
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0.006011962890625,
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0.00628662109375,
-0.... | 1,394 | 1394 | |
numpy.polynomial.polynomial.polyfit
numpy.polynomial.polynomial.polyfit¶
numpy.polynomial.polynomial.polyfit(x, y, deg, rcond=None, full=False, w=None)[source]¶
Least-squares fit of a polynomial to data.
Return the coefficients of a polynomial of degree deg that is the least squares fit to the data values y ... | 5 | [
-0.060302734375,
-0.014892578125,
0.02001953125,
0.01025390625,
0.12109375,
0.000701904296875,
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0.045166015625,
-0.003936767578125,
0.01531982421875,
0.06787109375,
-0.0142822265625,
-0.00994873046875,
0.054443359375,
-0.0427246... | 1,395 | 1395 | |
An inequality from Alex Lupas
If possible, find two positive integers $m,n$ such that: $8\pi - 2 < m \pi - n < e^{\pi}.$
Do you exactly want the numbers or prove existence of them? If you want the existence, for any $\lambda\in\mathbb{R}\backslash\mathbb{Q}$ the set $S:=\{m\lambda+n:m,n\in\mathbb{Z}\}$ is dense in $\
... | 5 | [
-0.0235595703125,
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0.07421875,
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0.01239013671875,
0.09130859375,
0.048095703125,
0.0771484375,
-0.078125,
0.1103515625,
-0.043701171875,
0.... | 1,396 | 1396 | |
Another integral
Ok how would you go about doing this one $\int_0^{\infty}\frac{arctan(ax)-arctan(bx)}{x}dx$?....I would imagine you go $\int_0^{\infty}\bigg[\sum_{n=0}^{\infty}\frac{(-1)^n\cdot{a^{2n+1}}\cdot{x^
{2n}}}{2n+1}-\sum_{n=0}^{\infty}\frac{(-1)^{n}\cdot{b^{2n+1}}\cdot{x^{2n}}}{2n+1}\bigg]{dx}$$=\bigg[\sum_{n... | 5 | [
-0.045654296875,
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-0.0213623046875,
0.036865234375,
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0.0283203125,
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0.0247802734375,
-0.0869140625,
0.049560546875,
0.009765625,
-0... | 1,397 | 1397 | |
Ideals of affine space curves
up vote 5 down vote favorite
2
Given some algebraic closed curve in the affine space $\mathbb{A}^3_\mathbb{C}$, is there a way to decide whether its ideal (polynomials in $\mathbb{C}[X,Y,Z]$ vanishing on the curve) is generated by
two elements?
I am mostly interested in the case where th... | 5 | [
-0.0771484375,
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0.0107421875,
-0.02... | 1,398 | 1398 | |
My Favorite Calculus: Lambda (part 1)
My Favorite Calculus: Lambda (part 1)
(In the original version of this post, I tried using a javascript tool for generating MathML. It appears to not work very well; several browsers failed to render it correctly, and it doesn't work in
an RSS feed. I've gone back and re-written ... | 4 | [
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0.1142578125,
0.0478515625,
0.0133056640625,
-0.056640625,
-0.0119018554687... | 1,399 | 1399 |