content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Homework Help
Posted by Vivian on Wednesday, March 14, 2012 at 8:14am.
Mia is stacking copies of a new book in a square-pyramid display by the front window of her bookstore. for each consecutive layer, she places one book where four meet.
A. I the bottom row of the display has 144 books and there is one book on the t... | 4 | [
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-0.0085449... | 1,200 | 1200 | |
Error problem
May 2nd 2010, 01:02 AM #1
Newbie
Joined
Feb 2010
Posts
24
Error problem
I want to compute x within 0.1% relative error with Simpson method, these are my m-files. Which command i should add for this?
function simps(a, b, n)
%simps(a, b, n) approximates the integral of a functi... | 4 | [
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Homework Help
Posted by mathstudent on Sunday, January 6, 2008 at 11:30pm.
Integrate: dx/(2x^2 + 4x + 7)
β’ calculus - Reiny, Monday, January 7, 2008 at 12:28am
messy, are you sure you typed correctly?
I was hoping the bottom would factor so I could use partial fractions.
the way it stands I ran it thr... | 5 | [
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TI-83: Simple 2 equation 2 variable
The main page for solving systems of linear equations on the TI-83 and TI-83 Plus.
The next example page covers a Simple 3 equation 3 variable situation. WARNING: The TI-83 and TI-83 Plus are almost id... | 5 | [
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Homework Help
Posted by Bonnie on Wednesday, July 8, 2009 at 3:18pm.
Use the quadratic formula to find the exact solutions of the equation. Show work. Simplify the final results as much as possible.
4x^2 β 16x + 25 = 0.
β’ Algebra - Marth, Wednesday, July 8, 2009 at 3:25pm
The exact question was asked by Pamel... | 4 | [
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Mathematics-Physics High School SMILE Meeting
29 February 2000
Notes take by Porter Johnson
Porter Johnson (IIT Physics)
told us of Birthdays on Today's Date (Leap Day!): Gioacchino Rossini [http://www.naxos.com/person/Gioachino_Rossini/26313.htm] in 1792 and Herman Hollerith http://www-groups.dcs.st-and.ac.uk/~histor... | 5 | [
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... | 1,205 | 1205 | |
Homework Help
Posted by Keyonna on Friday, May 6, 2011 at 10:05am.
The ratio of the perimeters of two similar squares is 5 to 4. If the area of the smaller square is 32 square units, what is the area of the larger square?
β’ Math - Reiny, Friday, May 6, 2011 at 10:17am
Since both the length of sides and perimet... | 4 | [
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Right Circular Cylinder problem...
January 10th 2010, 03:30 AM
orochimaru700
Right Circular Cylinder problem...
1.) Find the waste in making the largest possible cylindrical rod from a bar of iron 3ft long which has a cross section whose diagonal is 6 inches.
2.) A certain factory manufactures tin cans. It... | 4 | [
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Math: slope problem
Posted by Anonymous on Saturday, January 10, 2009 at 3:06pm.
Suppose a line passes through the point (6 caps, $3/cap) and has a slope of -3. Which of the following points also lie along that line? Select all that apply.
a) 4 caps, $9/cap
b) 7 caps, $0/cap
c) 5 caps, $5/cap
d) 2 caps, $7/cap
e)... | 4 | [
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Homework Help
Posted by noel on Thursday, May 24, 2012 at 10:00pm.
7. Determine the inverse of each relation given.
a. f(x) = 1/x-2 + 3
b. f(x) = 2(x β 4)^2 + 5
β’ math - Steve, Friday, May 25, 2012 at 12:27am
y = 1/(x-2) + 3
y-3 = 1/(x-2)
x-2 = 1/(y-3)
x = 1/(y-3) + 2
so, f^-1(x) = 1/(x-3) +... | 4 | [
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Posts by
Total # Posts: 10
Binomial Coefficient
Evaluate: n n-2 (expression should be in large brackets) I got n! /n-2! 2! . I know this is wrong but am not sure what to do next.
Binomial Coefficients
Evaulate: n n-2 (expression should be in large brackets) I got n! /n-2! 2! . I know this is wrong but am not sure wh... | 4 | [
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algebra - finding ideals
May 1st 2008, 08:01 AM #1
Member
Joined
Jan 2008
Posts
114
algebra - finding ideals
Just wondering if anyone knows of a quick method for finding ideals from a multiplication table?
e.g say you are looking at Z/6Z, which has ideals {0,2,4} and {0,3} is there any way you can l... | 5 | [
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Time-Varying MIMO Channels: Measurement, Analysis, and Modeling :: Institutional Repository
Time-Varying MIMO Channels: Measurement, Analysis, and Modeling
communication nodes is analyzed. A wide-band 8 times 8 sounder is employed to measure the response of indoor and outdoor channels at 2.55 and 5.2 GHz.... | 4 | [
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Fixing broken isomorphisms β details for non-strict memoization, part 2
The post Details for non-strict memoization, part 1 works out a systematic way of doing non-strict memoization, i.e., correct memoization of non-strict (and more broadly, non-hyper-strict) functions.
As I mentioned at the end, there was an awkward ... | 4 | [
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Homework Help
Posted by Jane on Thursday, December 29, 2011 at 6:12pm.
Please show me how to solve:
Sharon has some one-dollar bills and some five-dollar bills. She has 14 bills. The value of the bills is $30. Solve a system of equations using elimination to find how many of each kind of bill she
has.
β’ math - bob... | 4 | [
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How do I find this constant?
December 13th 2009, 11:59 AM #1
How do I find this constant?
$f(x,y)=\left\{ <br /> \begin{array}{lr} <br /> cx^2+y& 0\le x\le 1,0\le y\le 1,y\le x\\ <br /> 0&elsewhere,<br /> \end{array} <br /> \right.$
I can't figure out how to set this up. I have to show that c = 10, but every... | 5 | [
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u^:_1
19. u^:_1, u&.v, u&.:v, and u :.v
The Obverse u^:_1
What would it mean to apply a verb a negative number of times? Applying a verb _1 times should undo the effect of applying the verb once. In J, u^:n applies the verb u n times, and u^:_1 is defined
as the verb that undoes the effect of applying u once. u^:_1 i... | 5 | [
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Math (Combinatorics)
Posted by Joseph on Sunday, June 30, 2013 at 1:20pm.
In how many ways can I place 5 different beads on a bracelet if flipping or rotating the bracelet does not change the order of the beads?
β’ Math (Combinatorics) - Count Iblis, Sunday, June 30, 2013 at 2:39pm
The symmetry group here is D_... | 4 | [
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Theorem 1.4
Theorem 1.4: Two points uniquely determine a line. If the points are (x[1], y[1]) and (x[2], y[2]) then the equation is
x = x[1]
if the two points are vertical, and if not then it is of the form
... | 4 | [
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Homework Help
Posted by jo on Thursday, November 29, 2012 at 8:36pm.
Hi everyone,
I have been trying to figure out this titration equation all day and for some reason I am stumped.
Here is the question in full:
Potassium hydrogen phthalate, KHP, can be obtained in high purity and is used to determine the concentrat... | 4 | [
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geometry problem
April 16th 2009, 07:32 PM #1
Newbie
Joined
Apr 2009
Posts
5
Mrs. Aman asked her students to look at the drawing shown below to determine the length of d.
Which of the following student responses best represents the length of d?
A8 units
B11 units
C14 units
D3 units
... | 4 | [
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Homework Help
Posted by Anonymous on Wednesday, April 6, 2011 at 2:00am.
A rumor spreads through a population in such a way that "t" hours after the rumor starts, the percent of people involved in passing it on is given by P(t)=100[e^(-t)-e^(-4t)]. What is the highest
percent of people involved in spreading the rumor ... | 5 | [
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Question 8
November 27th 2006, 08:54 AM
ThePerfectHacker
Question 8
In Economics there is a rule that if you place money in a bank and each year earn a percentage $R$. Then the amount of years to double your money is, $\frac{72}{R}$
Say you have 100 dollars, and you earn 50% each year. So after 1 year you h... | 5 | [
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cartome.org
Field Manual 3-34.331 TOPOGRAPHIC SURVEYING 16 January 2001
TOC Chap1 2 3 4 5 6 7 8 9 10 11 AppA AppB AppC AppD Gl Bib
Chapter 6
TRAVERSE
Traversing is a form of a control survey that is used in a wide variety of surveys. Traverses are a series of established stations that are linked together by the ... | 4 | [
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Proposition 90
To find the sixth apotome.
Set out a rational straight line A, and set out three numbers E, BC, and CD not having to one another the ratio which a square number has to a square number, and further let CB also not have to BD
the ratio which a square number has to a square number.
Let it be contrived th... | 5 | [
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Homework Help
Posted by Janet on Saturday, April 16, 2011 at 5:09pm.
The length of a rectangle is decreasing at the rate of 2 cm/sec, while the width w is increasing at the rate of 3 cm/sec. At what rate are the lengths of the diagonals changing at the instant that l=
15 cm and w= 8 cm? Are the diagonals increasing or... | 5 | [
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Trees question
December 17th 2006, 05:43 PM #1
Junior Member
Joined
Dec 2006
Posts
28
Trees question
Ok, I have 2 questions.
1) So the center of a tree is defined as the set of vertices that have the smallest eccentricity (meaning the number of edges in a longest path that begins at a vertex x). How... | 5 | [
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Homework Help
Posted by Lance on Wednesday, October 24, 2012 at 4:35am.
Three boys shared some cards. Peter had twice as many cards as Farid. The ratio of the number of cards Peter had to the number of cards Kiran had was 6:5. Farid gave 2/3 of his cards to Peter and the
rest to Kiran. How many cards did Kiran have at... | 4 | [
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-0.0157470703125,
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0.0693... | 1,227 | 1227 | |
Homework Help
Posted by Jo on Tuesday, October 25, 2011 at 12:04am.
A particle is moving along the curve whose equation is (xy^3)/(1+y^2)= 8/5. Assume the x-coordinate is increasing at the rate of 6 units/second when the particle is at the point (1,2). At what rate
is the y-coordinate of the point changing at that ins... | 5 | [
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-0.02612304... | 1,228 | 1228 | |
unitary method
August 22nd 2006, 08:09 PM #1
please do this problem using chain rule
A, B and C can finish a piece of work in 30, 40, and 60 days respectively. 10 days after they started to work together B leaves. 4 days after B left, A leaves and C completes the remaining work.
Find how many days C had wo... | 4 | [
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0.0081787109375,
... | 1,229 | 1229 | |
Homework Help
Posted by John Terry on Saturday, April 7, 2012 at 3:36pm.
I am having trouble with this problem.
perform the indicated operations and simpily the result as much as possible
a) (3x - 2) (x^2 + 2x - 4 )
the answer i got so far is 3x^3 + 4x^2 -16x + 8. Am i done or i have to conitnue to simplify? if so,... | 4 | [
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... | 1,230 | 1230 | |
New objects from old using equivalence classes of pairs
In many places in mathematics, we see some variant of the following simple construction. The first time we see it is in constructing the integers from the natural numbers:
Consider pairs $(a,b)$ of elements of $\mathbb{N}$ (which includes zero for our purposes, b... | 4 | [
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Squaring Numbers Near Fifty
And now, a brief break from non-blogging:
Today, Iβd like to start with a specific example and move on to a general point. The specific example is a way to approximate the squares of numbers and then refine those approximations to get exact
answers, and the general point concerns the place ... | 4 | [
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2 Ball Bearings in a Tapering pipe
August 23rd 2011, 05:57 AM #1
Newbie
2 Ball Bearings in a Tapering pipe
Re: 2 Ball Bearings in a Tapering pipe
1. I've modified your drawing a little bit: The greyed triangle is a right triangle.
2. The distance between the midpoints is 45.97. The difference of the 2 radi... | 4 | [
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Connecting Greek Ladders and Continued Fractions - Matching Continued Fraction Convergents to Greek Ladder Approximations
As we noted earlier, the simple continued fraction converging to \(\sqrt{2}\) is \([1,2,2,2 \dots]\). It is easy to check that the \(n\)th convergent of this continued fraction is equal to the value... | 5 | [
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0.... | 1,234 | 1234 | |
Posts by
Total # Posts: 19
physics
a body travels 200 cm in the first two second and 220 cm in the next 4 seconds.what will be the velocity at the seventh second from the start.
chemistry
What will be value of molarity and strength %w/v respectively 30V H2O2 solution
math 12
the answer is 60 degrees
Advanced Math
... | 5 | [
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-0.08691... | 1,235 | 1235 | |
Homework Help
Posted by Daniel on Sunday, December 30, 2012 at 9:54pm.
An airplane ο¬ies at airspeed (relative to the air) of 430 km/h . The pilot wishes to ο¬y due North (relative to the ground) but there is a 43 km/h wind blowing Southwest (direction 225β¦).
In what direction should the pilot head the plane (measured ... | 4 | [
0.0167236328125,
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0.006591796875,
-0.09326171875,
-0.0... | 1,236 | 1236 | |
Equivalence of Norms
January 31st 2013, 03:16 AM #1
Equivalence of Norms
I'm somewhat stuck with the simple proof of the following:
Let the (Lebesgue-)measure of some $\Omega$ be finite and $1 \le p \le q \le \infty$.
Then for all $u \in L^q(\Omega)$ it is also true that $u \in L^p(\Omega)$, whereby
... | 5 | [
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0.01141357421875,
-0.... | 1,237 | 1237 | |
DE: Temperature and Coffee
June 26th 2009, 06:54 AM #1
Junior Member
Joined
May 2009
Posts
53
DE: Temperature and Coffee
Problem:
A freshly brewed cup of coffee has temperature 95Β°C in a 20Β°C room. When its temperature is 78 Β°C, it is cooling at a rate of 1Β°C per minute. When does this occur? Approx... | 5 | [
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Homework Help
Posted by Michael on Monday, March 26, 2012 at 4:31pm.
The Regional Farm Bureau (RFB) is preparing a brochure that offers advice about constructing pens for small farm animals, and they want us to be their consultants. They need us to carefully analyze
the following situations and provide a detailed repo... | 5 | [
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-0.060302734375,
-0.0098876953... | 1,239 | 1239 | |
Math Help
November 2nd 2012, 04:17 PM #1
Member
Joined
Jul 2011
Posts
80
Continuity
Determine the values where the function is continuous.
f(x)={x for rational numbers
{1-x for irrational numbers
I drew a sketch of what the graph would look like, and it seems that the function is not conti... | 4 | [
0.01434326171875,
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0.11962890625,
-0.003387451171875,
0.032958984375,
0.0144653... | 1,240 | 1240 | |
<. Floor - Lesser Of (Min)
>> << Usr Pri JfC LJ Phr Dic Rel Voc !: Help Dictionary
Floor <. 0 0 0 Lesser Of (Min)
<.y gives the floor of y , that is, the largest integer less than or equal to y . Thus: x<.y is the lesser of x and y . For example:
<. 4.6 ... | 4 | [
0.036865234375,
0.0986328125,
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0.04931640625,
0.060... | 1,241 | 1241 | |
Homework Help
Posted by Ragan on Friday, July 27, 2007 at 12:15am.
I am trying to factor polynomials by grouping the first two terms and the last two terms, but I am having some issues, I have done a few correct since I can look at the answers to the odd problems
but it is taking me arund 25 minutes per problem. here ... | 4 | [
-0.034423828125,
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... | 1,242 | 1242 | |
Appendix 1
The derivation of the Gauss-Markov theorem depended upon the matrix identity,
This identity is not very intuitive and so we will provide the proof here. This proof depends upon one assumption being true, that C = C^T.
Let us define,
and,
If we can establish that
We start by expanding X,
... | 4 | [
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0.04443359375,
-0.0101318359... | 1,243 | 1243 | |
st: maximum likelihood estimation weibull model with sample selection
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]
st: maximum likelihood estimation weibull model with sample selection
From "Kok Jb (OS)" <Jb.Kok@os.unimaas.nl>
To <statalist@hsphsun2.harvard.edu>
Subject st: max... | 4 | [
-0.03369140625,
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0.0267333984375,
-0... | 1,244 | 1244 | |
Differential Equations Lesson Plans & Worksheets | Lesson Planet
Differential Equations Teacher Resources
Find Differential Equations educational ideas and activities
Showing 1 - 20 of 149 resources
Twelfth graders explore differential equations.Β In this calculus lesson, 12th graders explore Eulerβs Methods of solv... | 4 | [
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0.109375,
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0.0277099609375,... | 1,245 | 1245 | |
Fury rotation comparision
11-10-2009 08:02 AM #2
11-10-2009 02:42 AM #1
Registrant
Join Date
Oct 2009
Location
Berlin, Germany
Posts
78
Fury rotation comparision
Quietsch suggested to move the discussion about two possible Fury Warrior rotations to a new thread, to keep Thegreatmes GuideThred clean.
... | 4 | [
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0.0155029296875,
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0.048828125,
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0.01318359375,
-0.000774383544921875,
0.08544921875,
-0.064453125,
-0.0... | 1,246 | 1246 | |
Homework Help
Posted by George on Sunday, March 3, 2013 at 9:16am.
find the first 3 terms in the expansion of (x+4)(1+3x)^-2 as a series in ascending powers.
I expanded the second bracket using binomial expansion and got 1 -6x +27x^2 -108x^3
how do I combine (x+4) with the expansion?
Any help would be appreciated.
... | 4 | [
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0.035400390625,
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D. J. Bernstein
Data structures and program structures
MCS 541, Computational Complexity, Fall 1999
What I did in class
19990823: General announcements. Goedel's question: if a theorem has a proof of length at most n, can we find it in time O(n^2)? Another question on what can be computed in limited time and space.
... | 4 | [
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0.0130615234375,... | 1,248 | 1248 | |
Existence and Uniqueness
Existence and uniqueness theorem is the tool which makes it possible for us to conclude that there exists only one solution to a first order differential equation which satisfies a given initial
condition. How does it work? Why is it the case? We believe it but it would be interesting to see th... | 4 | [
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0.03125,
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0.0108642578125,
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-0.01324462890625,
-0.096... | 1,249 | 1249 | |
maximizing profit
Posted by Miranda on Saturday, March 14, 2009 at 5:00pm.
A manufacture has been selling 1750 television sets a week at $540 each. A market survey indicates that for each $14 rebate offered to a buyer, the number of sets sold will increase by 140 per week.
a) Find the function representing the demand... | 4 | [
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0.028076171875,
-0.0644531... | 1,250 | 1250 | |
differential equations
November 1st 2009, 09:02 PM
noscbs
differential equations
a sphere with radius of 1meter has a temp = 15degrees. It lies inside a concentric sphere with radius of 2meters and temp = 25degrees. The temp T(r) at a distance r from the common center of the
spheres satisfies the differentia... | 5 | [
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-0.080078125,
0.006439208984375,
0.002853... | 1,251 | 1251 | |
Some probability in the game Big 2
November 11th 2007, 10:47 PM #1
Member
Joined
Oct 2007
Posts
145
Some probability in the game Big 2
Big 2 is a card game commonly played in Asia.
Big Two - Wikipedia, the free encyclopedia
There are 4 playeers and each is dealt 13 cards. The trump cards in this... | 5 | [
0.11767578125,
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-0... | 1,252 | 1252 | |
ZDDs defined
ZDDs may seem unremarkable, as they resemble well-known data structures such as crit-bit trees or DFAs. Nonetheless, the conditions they must satisfy have far-reaching implications.
We define a ZDD $Z$ to be any directed acyclic graph such that:
1. A terminal node is either:
β‘ the special node $... | 4 | [
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0.02770996... | 1,253 | 1253 | |
maths-trignometry
Posted by anoynomous on Saturday, March 16, 2013 at 2:41pm.
Prove that
tan-1 (1/7) + tan-1 (1/13) = tan-1(2/9)
β’ maths-trignometry - Reiny, Saturday, March 16, 2013 at 3:02pm
let tanA = 1/7 and tanB = 1/13
then tan(A+B) = (tanA + tanB)/( 1 - tanAtanB)
= (1/7 + 1/13)/(1 - (1/7)(1/13)... | 4 | [
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-0.03955078125,
-0.0461425... | 1,254 | 1254 | |
Slope fields
[Notes on Diffy Qs home] [PDF version] [Buy cheap paperback version]
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1.2 Slope fields
Note: 1 lecture, Β§1.3 in [EP], Β§1.1 in [BD]
At this point it may be good to first try the Lab I and/or Project I from the IODE website: http://www.math.uiuc.edu/iode/.
As we said... | 5 | [
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... | 1,255 | 1255 | |
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versiΓ³nΒ impresaΒ ISSN 0327-0793
Lat. Am. appl. res.Β v.33Β n.2Β BahΓa BlancaΒ abr./jun.Β 2003
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Supercritical extraction of solid matrices. Model formulation and experiments
L. Ruetsch^1 , J. Daghero^1 and M. Ma... | 4 | [
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... | 1,256 | 1256 | |
Branch Cuts and Integrals
November 14th 2010, 04:50 PM #1
Newbie
Joined
Feb 2010
Posts
18
Branch Cuts and Integrals
Hello again,
I've come across a new topic that involves solving integrals that involve logarithms. The examples in the text are not too clear how this is done. Can anyone help me solve... | 5 | [
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Homework Help
Posted by janice on Saturday, July 13, 2013 at 12:19am.
Playing game of chance and pay 300 by rolling a fair die one time if you rome a 2 and receive $1300 if you roll a 4 or six you receive $900 if you ore a 3 5 or 9 receive nothing. find expected value
for this game. based on value is it a good game to... | 4 | [
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-0.015... | 1,258 | 1258 | |
number theory
Posted by john on Wednesday, August 1, 2012 at 9:21pm.
Find the remainder when 1!+2!+...+299!+300! is divided by 21
β’ number theory - John, Wednesday, August 1, 2012 at 9:25pm
a) Find the last two digits(units and tens digit) in 1829^(1829)
b) Find the units digit in 23^(7777)
β’ number th... | 5 | [
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0.0... | 1,259 | 1259 | |
Trig question quadrants
November 22nd 2006, 07:39 AM #1
Junior Member
Joined
Nov 2006
Posts
62
Trig question quadrants
I am working on my homework and I am not sure if I am doing this correctly. Please let me know which one of these are correct, if any.
Find tan angle in QII, Sin angle=3/4 This is w... | 4 | [
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Homework Help
Posted by Scott on Thursday, May 22, 2014 at 12:48pm.
In a multiple choice test that contains ten questions with each question having five possible answers, what is the probability that Colin will pass the test if he merely guesses at each question?
β’ Data Management - MathMate, Thursday, May 22, 2014... | 4 | [
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... | 1,261 | 1261 | |
Homework Help
Posted by charlie on Saturday, November 24, 2012 at 9:54am.
4C =2A + 2B , 2B = A + 3C How many C's will balance the combination of A and B
β’ math - Reiny, Saturday, November 24, 2012 at 12:19pm
4C = 2A + 2B ----> C = (2A+2B)/4
2B = A+3C ------> C = (2B-A)/3
(2A + 2B)/4 = (2B-A)/3
6A ... | 4 | [
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Homework Help
Posted by Meghan on Monday, February 28, 2011 at 12:09pm.
Suppose that yβ€5x,3xβ€y and 14x+15yβ€1 together with 0β€x, 0β€y.
The maximum value of the function y+x on the resulting region occurs at x=? and y=?
The maximum value of the function is ?
β’ New Age Math - bobpursley, Monday, February 28, 2011 at ... | 4 | [
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l' hospital rule
May 24th 2010, 06:04 PM #1
Newbie
Joined
May 2010
Posts
9
l' hospital rule
Please help me to resolve this..
limit (x-pi) (tan (x/2))
x-pi
I found the answer is 1/0.. i think its wrong...
tq..
$\lim_{x \to \pi}\left[(x - \pi)\tan{\frac{x}{2}}\right] = \lim_{x \to \p... | 5 | [
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Homework Help
Algebra 2 - tchrwill, Tuesday, March 22, 2011 at 11:39am
Considering all possible rectangles with a given perimeter, the square encloses the greatest area.
Proof:
Consider a square of dimensions "x "by "x", the area of which is x^2.
Adjust the dimensions by adding "a" to one side and subtracting "a" fro... | 5 | [
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Ordinary Differential Equations/Linear Equations
Linear Equations and Linear OperatorsEdit
A general linear equation is of the form
$P_0(x)y^{(n)}+P_1(x)y^{(n-1)}+...+P_ny=Q(x)$,
where we will assume that the coefficient functions $P_i(x)$ and Q(x) are continuous functions in an interval [a,b], and that $P_0(x)eq0$ ... | 4 | [
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0.0... | 1,266 | 1266 | |
Math Help
May 5th 2010, 12:23 PM #1
Super Member
Joined
Aug 2009
Posts
639
homogenous
im trying to prove that 0 is an eigenvalue of A iff A is non invertible. may i know why for a homogeneous solution Ax = 0 to have a non trivial solution, it means that A in non-invertible?
cant it be that x is a z... | 5 | [
-0.06787109375,
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-0.125,
0.... | 1,267 | 1267 | |
Homework Help
Posted by natalie on Wednesday, April 4, 2007 at 9:00am.
Find the area of each regular polygon to the nearest tenth. Octagon with side length of 10 kilometers.
Heres what I tried; but I don't know if im on the right track.
Area=1/2 * Perimeter* Apothem
Perimeter=base of octagon* number of sides
Perim... | 4 | [
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-0.... | 1,268 | 1268 | |
[SOLVED] Diophantine equations
May 19th 2009, 02:46 PM #1
Newbie
Joined
May 2009
Posts
16
[SOLVED] Diophantine equations
Prove that there are no positive solutions to
x^4 - 4y^4 = z^2.
(Hint: Use the previous equation to first compute z^4 + (2xy)^4)
You assume that there are positive soluti... | 5 | [
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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 | [
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Computer Algorithms: Karatsuba Fast Multiplication
Typically multiplying two n-digit numbers require n2 multiplications. That is actually how we, humans, multiply numbers. Letβs take a look of an example in case weβve to multiply two 2-digit numbers.
12 x 15 = ?
OK, we know that the answer is 180 and there are lots ... | 5 | [
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0.1240234... | 1,271 | 1271 | |
Tin Ceilings, Triangles, and Loving Math
James Tanton had a tin ceiling
in his childhood bedroom with repeated squares on it. It got him wondering how many squares total, and how many ways to get from A to B, and ...
Now one of Dave Richeson's students has brought up
another tin ceiling problem
. Here's the pattern... | 5 | [
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Subnetting a Class C network address
Subnetting a Class C network can be a tricky process to master. From MCSE to CCNA to RHCE to CNE, you'll have to know it and know it well. Todd Lammle walks you through clear instructions and
step-by-step examples to help you learn this skill.
Letβs face it, some day you are going ... | 4 | [
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-0.03149414062... | 1,273 | 1273 | |
[solved] Define x-range for Series expantion
GROUPS:
Hi all,
I am pretty new (i.e. 2 days old) with Mathematica and so far enjoy the power of it.
My question is how-to make a series expantion for a certain x-range of the function.
The problem is that my function has quit... | 5 | [
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0.02185... | 1,274 | 1274 | |
- Instructor Notes
Riemann Sums - Instructor Notes
Deep background &endash; My preference in using technology in teaching mathematics is that the software be designed so that it is generally used by the student for exploration rather ... | 4 | [
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... | 1,275 | 1275 | |
How Far and How High Does a Baseball Need To Go For an Out-of-the-Park Home Run?
March 29th 2009, 09:11 AM #1
Newbie
Joined
Mar 2009
Posts
2
How Far and How High Does a Baseball Need To Go For an Out-of-the-Park Home Run?
How Far and How High Does a Baseball Need To Go For an Out-of-the-Park Home Run?
... | 4 | [
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Help with this PDE
October 1st 2009, 09:05 PM #1
Newbie
Joined
Oct 2009
Posts
3
Help with this PDE
Hello,
I'm currently taking a course in partial differential equations. We are currently solving boundary value problems using the method of separation of variables. I'm attemping to find the seperated... | 5 | [
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0.078125,
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Re: st: RE: Multivariate "mixed" distribution
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]
Re: st: RE: Multivariate "mixed" distribution
From n p <nik_padazis@yahoo.com>
To statalist@hsphsun2.harvard.edu
Subject Re: st: RE: Multivariate "mixed" distribution
Date Tue, 2 Nov 20... | 4 | [
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0... | 1,278 | 1278 | |
Solving an exponential equation of quadratic form
3^(2x) - 3^(x+2) +8=0 i tried 3^(x)=y but what about the 3^(x+2) ?
Notice that $3^{x + 2} = 3^x\cdot 3^2 = 9\left(3^x\right)$. So the equation becomes $3^{2x} - 9\left(3^x\right) + 8 = 0$. Also notice that $3^{2x} = \left(3^x\right)^2$. So the equation becomes $\
left(... | 4 | [
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-0.023... | 1,279 | 1279 | |
Homework Help
Posted by Jamie on Tuesday, January 16, 2007 at 4:52pm.
a) y =ln(x-1) find dy/dx=?
b) y=3 ln x - ln (1/x) where x >0, dy/dx= ?
My teacher says the answers are a) (2x)/(x^2-1) and b) 4/x
I am not sure how you find the derivative when they involve ln. Could you please explain to me how to get these answ... | 5 | [
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-0.1005859375... | 1,280 | 1280 | |
Experiment Design Regularization-Based Hardware/Software Codesign for Real-Time Enhanced Imaging in Uncertain Remote Sensing Environment
A new aggregated Hardware/Software (HW/SW) codesign approach to optimization of the digital signal processing techniques for enhanced imaging with real-world uncertain remote sensing ... | 4 | [
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Help with finding quadratic equation.
December 11th 2010, 03:38 PM
Lyfee
Help with finding quadratic equation.
hello, totally new here (Hi)
and i'm having trouble deriving the equation out of this question...
so here's the question:
Alex was practising his 10m platform dive (i'm assuming that it mean... | 4 | [
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0.035400390625... | 1,282 | 1282 | |
Benford Law and Lognormal Distributions
Benfordβs law is nowadays extremely popular (see e.g. http://en.wikipedia.org/β¦). It is usually claimed that, for a given set data set, changing units does not affect the distribution of the first
digit. Thus, it should be related to scale invariant distributions. Heuristically,... | 4 | [
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0.038330078125,
0.0654296875,
-0.0218505859375,
-0.0159912109375,
-0.032958984375,
0.1376953125... | 1,283 | 1283 | |
RE: st: New variable based on a sum of products of another variable
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 ... | 4 | [
-0.0966796875,
-0.02734375,
0.00506591796875,
-0.022216796875,
-0.0125732421875,
0.07275390625,
0.01214599609375,
0.00213623046875,
-0.0595703125,
0.047119140625,
0.011474609375,
0.04931640625,
0.040771484375,
0.0234375,
0.01141357421875,
0.1083984375,
-0.02294921875,
0.05224609375... | 1,284 | 1284 | |
Stumped by an optimization problem
May 9th 2006, 09:56 AM
lingyai
Stumped by an optimization problem
Hi there. I'm working through "Forgotten Calculus" (Barbara Lee Bleau) and am stuck on an optimisation problem. I'll give the question, show my attempt, and then reveal her (stated, not worked)
answer. Would ... | 4 | [
-0.003173828125,
0.048583984375,
-0.0380859375,
-0.0908203125,
-0.0245361328125,
0.01123046875,
0.033447265625,
0.052490234375,
-0.044921875,
0.0703125,
0.003173828125,
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0.1064453125,
0.08447265625,
-0.0128173828125,
0.1025390625,
-0.01220703125,
0.0166015625,
-0.... | 1,285 | 1285 | |
"a Universal Representation Of Rules" - Philosophy of Science
This is the final crux of my proof of the fact that any flaw free explanation can be represented by a mathematical function which is required to satisfy my βfundamental equationβ:
[math]
\left\{\sum_i \vec{\alpha}_i \cdot \vec{\nabla}_i + \sum_{i \neq j}\be... | 4 | [
-0.1640625,
0.0179443359375,
0.05615234375,
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0.10107421875,
0.0223388671875,
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0.0177001953125,
0.06787109375,
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0.0263671875,
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0.017822265625,
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0.051025390625,
-0.0302734375,
0.0079... | 1,286 | 1286 | |
Write the table of G...
September 28th 2010, 08:21 PM #1
Super Member
Joined
Feb 2008
Posts
535
Write the table of G...
Let G be the group {e, a, b, b^2, b^3, ab, ab^2, ab^3} whose generators satisfy:
a^2 = e, b^4 = e, ba = ab^3. Write the table of G.
Can someone show what the table looks like ... | 4 | [
-0.04931640625,
0.08203125,
-0.054443359375,
0.05419921875,
-0.1162109375,
0.0027313232421875,
0.05810546875,
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-0.0115966796875,
-0.026611328125,
0.019287109375,
-0.09619140625,
-0.01031494140625,
-0.054443359375,
0.031494140625,
0.1064453125,
-0.09033203125,
0.0471191... | 1,287 | 1287 | |
divides and greatest common divisor questions
February 17th 2013, 11:29 AM
spotsymaj
divides and greatest common divisor questions
This was the question proposed to me. I want to see if I am on the right track. If m|n and p|n and gcd(m,p) = 1 then mp|n.
Suppose m|n and p|n and gcd(m,p) = 1. We want to prove... | 4 | [
-0.07177734375,
0.049072265625,
-0.01025390625,
-0.0517578125,
0.04345703125,
-0.006988525390625,
0.042724609375,
0.060791015625,
-0.083984375,
-0.005615234375,
0.011962890625,
0.08056640625,
0.0380859375,
0.052734375,
-0.00110626220703125,
-0.014892578125,
0.00093841552734375,
-0.... | 1,288 | 1288 | |
trigonometry (MathMate)
Posted by anon on Monday, February 21, 2011 at 5:25pm.
MathMate i would really appreciate
if you can show me where the logarithms can be used.I know they are unnecessary and I already found the answer without them but i still have to show my work using logarithms and they just confuse me.
I al... | 4 | [
-0.0244140625,
0.099609375,
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-0.020263671875,
-0.0029296875,
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0.04052734375,
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0.0296630859375,
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0.0228271484375,
0.05078125,
0.0216064453125,
-0.1083984375,
-0.0126953125... | 1,289 | 1289 | |
Re: st: How to calculate mean of other individuals on the same group
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]
Re: st: How to calculate mean of other individuals on the same group
From "Quang Nguyen" <quangn@gmail.com>
To statalist@hsphsun2.harvard.edu
Subject Re: st: How to c... | 4 | [
-0.03125,
-0.0184326171875,
0.09619140625,
0.002716064453125,
-0.080078125,
0.038818359375,
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0.00958251953125,
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0.040771484375,
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-0.0908203125,
-0.0010604... | 1,290 | 1290 | |
absolute value..2 different answer
December 7th 2009, 10:58 AM #1
Junior Member
Joined
Sep 2009
Posts
49
absolute value
I getting a different answer...don't know why
|3-4x|β₯2
what i did was=====> i made it in to 2 parts ===>3 - 4x β₯ 2 and 3 - 4x β₯-2
my final answer that i got is
1/... | 4 | [
0.041015625,
-0.0157470703125,
0.0888671875,
-0.091796875,
-0.006591796875,
-0.060791015625,
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0.07421875,
0.039794921875,
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-0.0169677734375,
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0.0888671875,
0.00174713134765625,
0.0245361328125,
0.03271484375,
0.058349609375,
-0.05419... | 1,291 | 1291 | |
Transformation matrix - again
November 1st 2012, 08:28 AM #1
Junior Member
Joined
Sep 2012
From
sweden
Posts
61
Transformation matrix - again
We have the vectors a1 = (-2,5) and a2 = (-3,8) in the vector space R^2 and the linear transformation f: R^2 -> R^2 defined by
f(a1) = 2a1 - a2 and f(a2) ... | 5 | [
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0.109375,
-0.047363281... | 1,292 | 1292 | |
Homework Help
Posted by Emma on Wednesday, March 28, 2012 at 5:20pm.
an airplane flies directly overhead at 540mph. 1 minute later is seen at an angle of elevation of 34 degrees. how far did the airplane fly during that time? what is the elevation of the plane?
β’ Geom./Trig. - Reiny, Wednesday, March 28, 2012 at 5:... | 4 | [
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0.02282714... | 1,293 | 1293 | |
Desperate Dissertation help: Likert scale analysis 1-5 and Standard Deviation
April 10th 2008, 09:25 AM #1
Newbie
Joined
Apr 2008
Posts
2
Desperate Dissertation help: Likert scale analysis 1-5 and Standard Deviation
I've completely forgot how this works.
Here's my table, could anyone please start me... | 4 | [
0.0279541015625,
0.0147705078125,
0.10888671875,
-0.0167236328125,
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0.042724609375,
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0.01312... | 1,294 | 1294 | |
An RL Circuit with a Battery
Let's put an inductor (i.e., a coil with an inductance L) in series with a battery of emf e and a resistor of resistance R. This is known as an RL circuit. There are some similarities between the RL
circui... | 4 | [
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0.041259765... | 1,295 | 1295 | |
Spinning around the y-axis
December 1st 2006, 05:53 AM #1
Spinning around the y-axis
lo'
The area that is limited by the curve y=x^-2 and y=1, y=e gets to rotate around the y axis detirmine the volume of the figure.
The problem: How do i get the integration values? since it rotates around the y-axis i c... | 5 | [
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0.0... | 1,296 | 1296 | |
Logarithmics
March 8th 2006, 05:01 PM
Stuart
Logarithmics
How would I solve:
2log n - log 2n = 2
3 3
and the 3's should be under that logs right side.
March 8th 2006, 06:30 PM
ThePerfectHacker
Quote:
Originally Posted by Stuart
How would I solve:
2log n - log 2n = 2
3 3
... | 4 | [
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0.0... | 1,297 | 1297 | |
Mobius Transformation
August 5th 2009, 05:30 PM
josephtw
Mobius Transformation
Map the region between the two circles |z-1|=1, |z|=2 conformally to the upper-half plane (mapping 2 to Infinity).
I actually have an answer to this, but I'm looking for pointers on the process.
Thanks.
August 6th 2009, 01:... | 5 | [
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Pills, Half Pills, and Probabilities
Yesterday, I was uploading some old posts to complete the migration (I get back to my old posts, one by one, to check links of pictures, reformating R codes, etc). And I re-discovered a post
published amost 2 years ago, on nuns and Hellβs Angels in an airplaine.
It reminded me an ... | 5 | [
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-0.038574... | 1,299 | 1299 |