8 March 2011

• 23:1323:13, 8 March 2011 diff hist +770 2007 AIME I Problems/Problem 6 No edit summary

6 March 2011

• 13:1513:15, 6 March 2011 diff hist 0 m 2011 AMC 12B Problems →Problem 25
• 13:1513:15, 6 March 2011 diff hist +830 2011 AMC 12B Problems →Problem 25
• 13:1013:10, 6 March 2011 diff hist +490 2011 AMC 12B Problems →Problem 24
• 13:0813:08, 6 March 2011 diff hist +567 2011 AMC 12B Problems →Problem 23
• 13:0613:06, 6 March 2011 diff hist +784 2011 AMC 12B Problems →Problem 22
• 13:0413:04, 6 March 2011 diff hist +433 2011 AMC 12B Problems →Problem 21
• 13:0213:02, 6 March 2011 diff hist +636 2011 AMC 12B Problems →Problem 20
• 12:5912:59, 6 March 2011 diff hist +604 2011 AMC 12B Problems →Problem 19
• 12:5712:57, 6 March 2011 diff hist +544 2011 AMC 12B Problems →Problem 18
• 12:5612:56, 6 March 2011 diff hist +422 2011 AMC 12B Problems →Problem 17
• 12:5412:54, 6 March 2011 diff hist +523 2011 AMC 12B Problems →Problem 16
• 12:5312:53, 6 March 2011 diff hist +2 2011 AMC 12B Problems →Problem 15
• 12:5212:52, 6 March 2011 diff hist +245 2011 AMC 12B Problems →Problem 15
• 12:5212:52, 6 March 2011 diff hist +495 2011 AMC 12B Problems →Problem 14
• 12:5012:50, 6 March 2011 diff hist +424 2011 AMC 12B Problems →Problem 13
• 12:4912:49, 6 March 2011 diff hist +497 2011 AMC 12B Problems →Problem 12

24 February 2011

• 21:4721:47, 24 February 2011 diff hist +212 2011 AMC 12A Problems/Problem 11 No edit summary
• 21:4521:45, 24 February 2011 diff hist +13 2011 AMC 12A Problems/Problem 11 No edit summary
• 21:4421:44, 24 February 2011 diff hist +492 2011 AMC 12A Problems/Problem 11 No edit summary

25 December 2010

• 16:3616:36, 25 December 2010 diff hist −625 2010 AMC 12B Problems/Problem 24 No edit summary
• 16:3616:36, 25 December 2010 diff hist +625 2010 AMC 12B Problems/Problem 24 No edit summary

12 July 2010

• 16:3216:32, 12 July 2010 diff hist +17 2010 AMC 12B Problems/Problem 25 No edit summary
• 16:3116:31, 12 July 2010 diff hist +483 N 2010 AMC 12B Problems/Problem 25 Created page with 'For every integer <math>n\ge2</math>, let <math>\text{pow}(n)</math> be the largest power of the largest prime tha divides <math>n</math>. For example <math>\text{pow}(144)=\text…'
• 16:3116:31, 12 July 2010 diff hist +436 N 2010 AMC 12B Problems/Problem 24 Created page with '== Problem 24 == The set of real numbers <math>x</math> for which <cmath>\dfrac{1}{x-2009}+\dfrac{1}{x-2010}+\dfrac{1}{x-2011}\ge1</cmath> is the union of intervals of the for…'
• 16:3016:30, 12 July 2010 diff hist +494 N 2010 AMC 12B Problems/Problem 23 Created page with ' == Problem 23 == Monic quadratic polynomial <math>P(x)</math> and <math>Q(x)</math> have the property that <math>P(Q(x))</math> has zeros at <math>x=-23, -21, -17,</math> and <m…'
• 16:2416:24, 12 July 2010 diff hist −16 2010 AMC 12B Problems/Problem 1 No edit summary
• 16:2416:24, 12 July 2010 diff hist 0 2010 AMC 12B Problems/Problem 16 No edit summary
• 16:2416:24, 12 July 2010 diff hist 0 2010 AMC 12B Problems/Problem 17 No edit summary
• 16:2316:23, 12 July 2010 diff hist 0 2010 AMC 12B Problems/Problem 18 No edit summary
• 16:2316:23, 12 July 2010 diff hist 0 2010 AMC 12B Problems/Problem 19 No edit summary
• 16:2216:22, 12 July 2010 diff hist 0 2010 AMC 12B Problems/Problem 20 No edit summary
• 16:2216:22, 12 July 2010 diff hist 0 2010 AMC 12B Problems/Problem 21 No edit summary
• 16:2216:22, 12 July 2010 diff hist +542 N 2010 AMC 12B Problems/Problem 22 Created page with '== Problem 22 == Let <math>ABCD</math> be a cyclic quadralateral. The side lengths of <math>ABCD</math> are distinct integers less than <math>15</math> such that <math>BC\cdot CD…'
• 16:2116:21, 12 July 2010 diff hist +501 N 2010 AMC 12B Problems/Problem 21 Created page with '== Problem 21 == Let <math>a > 0</math>, and let <math>P(x)</math> be a polynomial with integer coefficients such that <center> <math>P(1) = P(3) = P(5) = P(7) = a</math>, and<b…'
• 16:2116:21, 12 July 2010 diff hist +443 N 2010 AMC 12B Problems/Problem 20 Created page with '== Problem 20 == A geometric sequence <math>(a_n)</math> has <math>a_1=\sin x</math>, <math>a_2=\cos x</math>, and <math>a_3= \tan x</math> for some real number <math>x</math>. F…'
• 16:2116:21, 12 July 2010 diff hist +761 N 2010 AMC 12B Problems/Problem 19 Created page with '== Problem 19 == A high school basketball game between the Raiders and Wildcats was tied at the end of the first quarter. The number of points scored by the Raiders in each of th…'
• 16:2016:20, 12 July 2010 diff hist +530 N 2010 AMC 12B Problems/Problem 18 Created page with '== Problem 18 == A frog makes <math>3</math> jumps, each exactly <math>1</math> meter long. The directions of the jumps are chosen independenly at random. What is the probability…'
• 16:1916:19, 12 July 2010 diff hist +446 N 2010 AMC 12B Problems/Problem 17 Created page with '== Problem 17 == The entries in a <math>3 \times 3</math> array include all the digits from <math>1</math> through <math>9</math>, arranged so that the entries in every row and c…'
• 16:1916:19, 12 July 2010 diff hist +544 N 2010 AMC 12B Problems/Problem 16 Created page with '== Problem 16 == Positive integers <math>a</math>, <math>b</math>, and <math>c</math> are randomly and independently selected with replacement from the set <math>\{1, 2, 3,\dots,…'
• 16:1916:19, 12 July 2010 diff hist +444 N 2010 AMC 12B Problems/Problem 15 Created page with '== Problem 15 == For how many ordered triples <math>(x,y,z)</math> of nonnegative integers less than <math>20</math> are there exactly two distinct elements in the set <math>\{i^…'
• 16:1816:18, 12 July 2010 diff hist +546 N 2010 AMC 12B Problems/Problem 14 Created page with '== Problem 14 == Let <math>a</math>, <math>b</math>, <math>c</math>, <math>d</math>, and <math>e</math> be postive integers with <math>a+b+c+d+e=2010</math> and let <math>M</math…'
• 16:1816:18, 12 July 2010 diff hist +421 N 2010 AMC 12B Problems/Problem 11 Created page with '== Problem 11 == A palindrome between <math>1000</math> and <math>10,000</math> is chosen at random. What is the probability that it is divisible by <math>7</math>? <math>\textb…'
• 16:1816:18, 12 July 2010 diff hist +412 N 2010 AMC 12B Problems/Problem 10 Created page with '== Problem 10 == The average of the numbers <math>1, 2, 3,\cdots, 98, 99,</math> and <math>x</math> is <math>100x</math>. What is <math>x</math>? <math>\textbf{(A)}\ \dfrac{49}{…'
• 16:1716:17, 12 July 2010 diff hist +452 N 2010 AMC 12B Problems/Problem 9 Created page with '== Problem 9 == Let <math>n</math> be the smallest positive integer such that <math>n</math> id divisible by <math>20</math>, <math>n^2</math> is a perfect cube, and <math>n^3</m…'
• 16:1716:17, 12 July 2010 diff hist +625 N 2010 AMC 12B Problems/Problem 8 Created page with '== Problem 8 == Every high school in the city of Euclid sent a team of <math>3</math> students to a math contest. Each participant in the contest received a different score. Andr…'
• 16:1616:16, 12 July 2010 diff hist +550 N 2010 AMC 12B Problems/Problem 7 Created page with '== Problem 7 == Shelby drives her scooter at a speed of <math>30</math> miles per hour if it is not raining, and <math>20</math> miles per hour if it is raining. Today she drove …'
• 16:1616:16, 12 July 2010 diff hist +373 N 2010 AMC 12B Problems/Problem 4 Created page with '== Problem 4 == A month with <math>31</math> days has the same number of Mondays and Wednesdays.How many of the seven days of the week could be the first day of this month? <mat…'

9 July 2010

• 17:5317:53, 9 July 2010 diff hist +4 2010 AMC 12B Problems/Problem 12 No edit summary
• 17:5317:53, 9 July 2010 diff hist −14 2010 AMC 12B Problems/Problem 12 No edit summary