23 March 2017

• 11:3711:37, 23 March 2017 diff hist +1,659 N 2017 AIME II Problems/Problem 12 Created page with "<math>\textbf{Problem 12}</math> Circle <math>C_0</math> has radius <math>1</math>, and the point <math>A_0</math> is a point on the circle. Circle <math>C_1</math> has radius..."
• 11:3711:37, 23 March 2017 diff hist +414 N 2017 AIME II Problems/Problem 11 Created page with "<math>\textbf{Problem 11}</math> Five towns are connected by a system of raods. There is exactly one road connecting each pair of towns. Find the number of ways there are to m..."
• 11:3711:37, 23 March 2017 diff hist +645 N 2017 AIME II Problems/Problem 10 Created page with "<math>\textbf{Problem 10}</math> Rectangle <math>ABCD</math> has side lengths <math>AB=84</math> and <math>AD=42</math>. Point <math>M</math> is the midpoint of <math>\overlin..."
• 11:3711:37, 23 March 2017 diff hist +771 N 2017 AIME II Problems/Problem 9 Created page with "<math>\textbf{Problem 9}</math> A special deck of cards contains <math>49</math> cards, each labeled with a number from <math>1</math> to <math>7</math> and colored with one o..."
• 11:3611:36, 23 March 2017 diff hist +297 N 2017 AIME II Problems/Problem 8 Created page with "<math>\textbf{Problem 8}</math> Find the number of positive integers <math>n</math> less than <math>2017</math> such that <cmath>1+n+\frac{n^2}{2!}+\frac{n^3}{3!}+\frac{n^4}{4..."
• 11:3611:36, 23 March 2017 diff hist +25 2017 AIME II Problems/Problem 7 No edit summary
• 11:3611:36, 23 March 2017 diff hist +259 N 2017 AIME II Problems/Problem 7 Created page with "<math>\textbf{Problem 7}</math> Find the number of integer values of <math>k</math> in the closed interval <math>[-500,500]</math> for which the equation <math>\log(kx)=2\log(..."
• 11:3511:35, 23 March 2017 diff hist +943 N 2017 AIME II Problems/Problem 6 Created page with "<math>\textbf{Problem 6}</math> Find the sum of all positive integers <math>n</math> such that <math>\sqrt{n^2+85n+2017}</math> is an integer. <math>\textbf{Problem 6 Solutio..."
• 11:3511:35, 23 March 2017 diff hist +1,462 N 2017 AIME II Problems/Problem 5 Created page with "<math>\textbf{Problem 5}</math> A set contains four numbers. The six pairwise sums of distinct elements of the set, in no particular order, are <math>189</math>, <math>320</ma..."
• 11:3511:35, 23 March 2017 diff hist +1,268 N 2017 AIME II Problems/Problem 4 Created page with "<math>\textbf{Problem 4}</math> Find the number of positive integers less than or equal to <math>2017</math> whose base-three representation contains no digit equal to <math>0..."
• 11:3411:34, 23 March 2017 diff hist +2,721 N 2017 AIME II Problems/Problem 3 Created page with "<math>\textbf{Problem 3}</math> A triangle has vertices <math>A(0,0)</math>, <math>B(12,0)</math>, and <math>C(8,10)</math>. The probability that a randomly chosen point insid..."
• 11:3411:34, 23 March 2017 diff hist +2,262 N 2017 AIME II Problems/Problem 2 Created page with "<math>\textbf{Problem 2}</math> The teams <math>T_1</math>, <math>T_2</math>, <math>T_3</math>, and <math>T_4</math> are in the playoffs. In the semifinal matches, <math>T_1</..."
• 11:3311:33, 23 March 2017 diff hist +1,348 N 2017 AIME II Problems/Problem 1 Created page with "<math>\textbf{Problem 1}</math> Find the number of subsets of <math>\{1, 2, 3, 4, 5, 6, 7, 8\}</math> that are subsets of neither <math>\{1, 2, 3, 4, 5\}</math> nor <math>\{4,..."
• 11:3311:33, 23 March 2017 diff hist +15,446 N 2017 AIME II Problems Created page with "<math>\textbf{Problem 1}</math> Find the number of subsets of <math>\{1, 2, 3, 4, 5, 6, 7, 8\}</math> that are subsets of neither <math>\{1, 2, 3, 4, 5\}</math> nor <math>\{4,..."
• 11:3211:32, 23 March 2017 diff hist −4 2017 AIME II No edit summary

4 March 2017

• 16:4716:47, 4 March 2017 diff hist +102 Illinois Mathcounts 2017 state results

16 February 2017

• 19:3819:38, 16 February 2017 diff hist +143 2017 AMC 10B Problems/Problem 24 →Solution
• 16:4716:47, 16 February 2017 diff hist +59 2017 AMC 10B Problems/Problem 6 No edit summary
• 16:4516:45, 16 February 2017 diff hist +4 2017 AMC 10B Problems/Problem 10 No edit summary
• 16:4216:42, 16 February 2017 diff hist +303 2017 AMC 10B Problems/Problem 10 No edit summary
• 16:3816:38, 16 February 2017 diff hist +287 2017 AMC 10B Problems/Problem 10 No edit summary
• 16:3616:36, 16 February 2017 diff hist +239 2017 AMC 10B Problems/Problem 10 No edit summary
• 12:4912:49, 16 February 2017 diff hist +4 2017 AMC 10B Problems/Problem 6 No edit summary
• 12:4812:48, 16 February 2017 diff hist +10 2017 AMC 10B Problems/Problem 6 No edit summary
• 12:4712:47, 16 February 2017 diff hist +1 2017 AMC 10B Problems/Problem 2 No edit summary
• 12:4412:44, 16 February 2017 diff hist −38 2017 AMC 10B Problems/Problem 1 No edit summary
• 12:4112:41, 16 February 2017 diff hist +141 2017 AMC 10B Problems/Problem 4 No edit summary
• 12:3812:38, 16 February 2017 diff hist +387 2017 AMC 10B Problems/Problem 8 No edit summary
• 12:3412:34, 16 February 2017 diff hist +258 2017 AMC 10B Problems/Problem 10 No edit summary
• 12:3312:33, 16 February 2017 diff hist +8 2017 AMC 10B Problems/Problem 11 No edit summary
• 12:3212:32, 16 February 2017 diff hist +505 2017 AMC 10B Problems/Problem 11 No edit summary
• 12:2912:29, 16 February 2017 diff hist +246 2017 AMC 10B Problems/Problem 16 No edit summary
• 12:2812:28, 16 February 2017 diff hist −9 2017 AMC 10B Problems/Problem 17 No edit summary
• 12:2712:27, 16 February 2017 diff hist +512 2017 AMC 10B Problems/Problem 17 No edit summary
• 12:2312:23, 16 February 2017 diff hist +392 2017 AMC 10B Problems/Problem 18 No edit summary
• 12:2112:21, 16 February 2017 diff hist +639 2017 AMC 10B Problems/Problem 19 No edit summary
• 12:1612:16, 16 February 2017 diff hist +340 2017 AMC 10B Problems/Problem 20 No edit summary
• 12:1212:12, 16 February 2017 diff hist +1 2017 AMC 10B Problems/Problem 21 No edit summary
• 12:1112:11, 16 February 2017 diff hist +407 2017 AMC 10B Problems/Problem 21 No edit summary
• 11:4011:40, 16 February 2017 diff hist +215 2017 AMC 10B Problems/Problem 5 No edit summary
• 11:3611:36, 16 February 2017 diff hist +196 2017 AMC 10B Problems/Problem 3 No edit summary
• 10:3910:39, 16 February 2017 diff hist +26 2017 AMC 10B Answer Key No edit summary current
• 09:2209:22, 16 February 2017 diff hist +11 2017 AMC 10B Problems/Problem 22 No edit summary
• 09:1609:16, 16 February 2017 diff hist +605 N 2017 AMC 10B Problems/Problem 22 Created page with "The diameter <math>AB</math> of a circle of radius <math>2</math> is extended to a point <math>D</math> outside the circle so that <math>BD=3</math>. Point <math>E</math> is c..."
• 09:0609:06, 16 February 2017 diff hist +122 2017 AMC 10B Problems/Problem 24 No edit summary
• 09:0509:05, 16 February 2017 diff hist +1 2017 AMC 10B Problems/Problem 23 No edit summary
• 09:0409:04, 16 February 2017 diff hist +115 2017 AMC 10B Problems/Problem 23 No edit summary
• 09:0309:03, 16 February 2017 diff hist +276 N 2017 AMC 10B Problems/Problem 23 Created page with "==Problem 23== Let <math>N=123456789101112\dots4344</math> be the <math>79</math>-digit number that is formed by writing the integers from <math>1</math> to <math>44</math> in..."
• 09:0109:01, 16 February 2017 diff hist +15 2017 AMC 10B Problems/Problem 24 No edit summary
• 09:0009:00, 16 February 2017 diff hist +191 N 2017 AMC 10B Problems/Problem 24 Created page with "The vertices of an equilateral triangle lie on the hyperbola <math>xy=1</math>, and a vertex of this hyperbola is the centroid of the triangle. What is the square of the area..."