27 December 2008

• 09:3409:34, 27 December 2008 diff hist +1,662 N 2002 AMC 10A Problems/Problem 24 New page: ==Problem== Tina randomly selects two distinct numbers from the set {1, 2, 3, 4, 5}, and Sergio randomly selects a number from the set {1, 2, ..., 10}. What is the probability that Sergio'...
• 09:2609:26, 27 December 2008 diff hist +440 2002 AMC 10A Problems →Problem 23
• 09:2509:25, 27 December 2008 diff hist +217 2002 AMC 10A Problems/Problem 21 No edit summary
• 09:1809:18, 27 December 2008 diff hist −121 2002 AMC 10A Problems/Problem 21 →Problem

26 December 2008

• 22:3722:37, 26 December 2008 diff hist +172 2002 AMC 10A Problems/Problem 19 →Solution
• 22:2522:25, 26 December 2008 diff hist +793 N 2002 AMC 10A Problems/Problem 18 New page: == Problem == A 3x3x3 cube is made of 27 normal dice. Each die's opposite sides sum to 7. What is the smallest possible sum of all of the values visible on the 6 faces of the large cube?...
• 22:1922:19, 26 December 2008 diff hist +762 N 2002 AMC 10A Problems/Problem 16 New page: == Problem == Let <math>\text{a + 1 = b + 2 = c + 3 = d + 4 = a + b + c + d + 5}</math>. What is <math>\text{a + b + c + d}</math>? <math>\text{(A)}\ -5 \qquad \text{(B)}\ -10/3 \qquad \...
• 22:0822:08, 26 December 2008 diff hist +850 N 2002 AMC 10A Problems/Problem 13 New page: == Problem == Give a triangle with side lengths 15, 20, and 25, find the triangle's smallest height. <math>\text{(A)}\ 6 \qquad \text{(B)}\ 12 \qquad \text{(C)}\ 12.5 \qquad \text{(D)}\ ...
• 22:0222:02, 26 December 2008 diff hist +194 2002 AMC 10A Problems/Problem 11 →Solution
• 21:5221:52, 26 December 2008 diff hist +1,391 N 2002 AMC 10A Problems/Problem 12 New page: == Problem == Mr. Bird gets up every day at 8:00 AM to go to work. If he drives at an average speed of 40 miles per hour, he will be late by 3 minutes. If he drives at an average speed of...
• 21:3221:32, 26 December 2008 diff hist +65 2002 AMC 10A Problems/Problem 10 →Solution
• 21:2821:28, 26 December 2008 diff hist +477 N 2002 AMC 10A Problems/Problem 10 New page: == Problem == What is the sum of all of the roots of <math>(2x + 3) (x - 4) + (2x + 3) (x - 6) = 0</math>? <math>\text{(A)}\ 7/2 \qquad \text{(B)}\ 4 \qquad \text{(C)}\ 5 \qquad \text{(D...
• 21:1921:19, 26 December 2008 diff hist +113 2002 AMC 10A Problems/Problem 9 →Solution
• 21:1821:18, 26 December 2008 diff hist +628 N 2002 AMC 10A Problems/Problem 9 New page: == Problem == There are 3 numbers A, B, and C, such that <math>1001C - 2002A = 4004</math>, and <math>1001B + 3003A = 5005</math>. What is the average of A, B, and C? <math>\text{(A)}\ 1...
• 17:4817:48, 26 December 2008 diff hist +862 N 2002 AMC 10A Problems/Problem 14 New page: == Problem == The 2 roots of the quadratic <math>x^2 - 63x + k = 0</math> are both prime. How many values of k are there? <math>\text{(A)}\ 0 \qquad \text{(B)}\ 1 \qquad \text{(C)}\ 2 \q...
• 17:3917:39, 26 December 2008 diff hist +581 N 2002 AMC 10A Problems/Problem 3 New page: ==Problem== According to the standard convention for exponentiation, <math>2^{2^{2^2}} = 2^{\left(2^{\left(2^2\right)}\right)} = 2^{16} = 65,536</math>. If the order in which the expone...
• 17:3317:33, 26 December 2008 diff hist +361 2002 AMC 10A Problems →Problem 3
• 17:3117:31, 26 December 2008 diff hist +1,106 N 2002 AMC 10A Problems/Problem 7 New page: ==Problem== A <math>45^\circ</math> arc of circle A is equal in length to a <math>30^\circ</math> arc of circle B. What is the ratio of circle A's area and circle B's area? <math>\text{(...
• 17:1417:14, 26 December 2008 diff hist +562 N 2002 AMC 10A Problems/Problem 6 New page: =Problem== From a starting number, Cindy was supposed to subtract 3, and then divide by 9, but instead, Cindy subtracted 9, then divided by 3, getting 43. If the correct instructions were ...
• 17:1017:10, 26 December 2008 diff hist +405 N 2002 AMC 10A Problems/Problem 4 New page: ==Problem== For how many positive integers m is there at least 1 positive integer n such that <math>mn \le m + n</math>? <math>\text{(A)}\ 4 \qquad \text{(B)}\ 6 \qquad \text{(C)}\ 9 \qqu...
• 17:0517:05, 26 December 2008 diff hist +503 N 2002 AMC 10A Problems/Problem 2 New page: ==Problem== Given that a, b, and c are non-zero real numbers, define <math>(a, b, c) = \frac{a}{b} + \frac{b}{c} + \frac{c}{a}</math>, find <math>(2, 12, 9)</math>. <math>\text{(A)}\ 4 \q...
• 16:5816:58, 26 December 2008 diff hist +488 N 2002 AMC 10A Problems/Problem 1 New page: ==Problem== The ratio <math>\frac{10^{2000}+10^{2002}}{10^{2001}+10^{2001}}</math> is closest to which of the following numbers? <math>\text{(A)}\ 0.1 \qquad \text{(B)}\ 0.2 \qquad \text{...

14 December 2008

• 21:3621:36, 14 December 2008 diff hist −137 User:Xpmath →Book goals
• 21:3621:36, 14 December 2008 diff hist 0 User:Xpmath →Minor Goals for 8th grade
• 21:3621:36, 14 December 2008 diff hist −27 User:Xpmath →Major Goals for 8th Grade
• 21:3521:35, 14 December 2008 diff hist +36 User:Xpmath →Seventth Grade
• 21:3421:34, 14 December 2008 diff hist +34 User:Xpmath →Sixth Grade
• 21:3421:34, 14 December 2008 diff hist −121 User:Xpmath →Seventth Grade
• 21:3121:31, 14 December 2008 diff hist +401 User:Xpmath →Eighth Grade
• 21:2721:27, 14 December 2008 diff hist +12 User:Xpmath →Fifth Grade

9 November 2008

• 09:4909:49, 9 November 2008 diff hist 0 1984 AIME Problems →Problem 9
• 09:4809:48, 9 November 2008 diff hist −1 1984 AIME Problems →Problem 9

27 October 2008

• 18:0118:01, 27 October 2008 diff hist +3 User:Xpmath →Fifth Grade
• 18:0118:01, 27 October 2008 diff hist +634 User:Xpmath No edit summary

26 May 2008

• 07:3907:39, 26 May 2008 diff hist +52 User:Xpmath No edit summary

6 April 2008

• 20:4320:43, 6 April 2008 diff hist +1,822 N User:Xpmath New page: So. I finally decide to use this page, just to record my failures at math. My first "actual" math competition was in fourth grade, when I took the MML and scored a 29/30 (surprising, sinc...

6 October 2007

• 08:4108:41, 6 October 2007 diff hist +1 User:Temperal/The Problem Solver's Resource8 →Fermat-Euler Identitity
• 08:3908:39, 6 October 2007 diff hist +3 User:Temperal/The Problem Solver's Resource1 →Other Formulas

5 October 2007

• 21:0521:05, 5 October 2007 diff hist 0 User:Temperal/The Problem Solver's Resource8 →Useful facts and Formulas
• 21:0521:05, 5 October 2007 diff hist +90 User:Temperal/The Problem Solver's Resource8 →Useful facts and Formulas
• 21:0421:04, 5 October 2007 diff hist +1 User:Temperal/The Problem Solver's Resource8 →Useful facts and Formulas
• 21:0421:04, 5 October 2007 diff hist +317 User:Temperal/The Problem Solver's Resource8 →<span style="font-size:20px; color: blue;">Intermediate Number Theory</span>
• 20:1720:17, 5 October 2007 diff hist +43 User:Temperal/The Problem Solver's Resource7 →Factorial
• 20:1320:13, 5 October 2007 diff hist +154 User:Temperal/The Problem Solver's Resource7 →<span style="font-size:20px; color: blue;">Combinatorics</span>
• 20:1020:10, 5 October 2007 diff hist +259 User:Temperal/The Problem Solver's Resource6 →Properties
• 20:0920:09, 5 October 2007 diff hist −259 User:Temperal/The Problem Solver's Resource6 →Useful Theorems
• 20:0920:09, 5 October 2007 diff hist +1 User:Temperal/The Problem Solver's Resource6 →Useful Theorems
• 20:0720:07, 5 October 2007 diff hist +258 User:Temperal/The Problem Solver's Resource6 →Properties
• 19:5519:55, 5 October 2007 diff hist +2 User:Temperal/The Problem Solver's Resource1 →Basic Facts
• 19:5419:54, 5 October 2007 diff hist +36 User:Temperal/The Problem Solver's Resource1 →Basic Facts