User contributions for Thedrummer

13:0413:04, 13 February 2011 diff hist +520 N 2011 AMC 10A Problems/Problem 25 Created page with '==Problem 25== Let <math>R</math> be a square region and <math>n\ge4</math> an integer. A point <math>X</math> in the interior of <math>R</math> is called <math>n\text{-}ray</ma…'
01:5201:52, 13 February 2011 diff hist +363 N 2011 AMC 10A Problems/Problem 24 Created page with '==Problem 24== Two distinct regular tetrahedra have all their vertices among the vertices of the same unit cube. What is the volume of the region formed by the intersection of t…'

19:2519:25, 12 February 2011 diff hist +294 N 2011 AMC 10A Problems/Problem 17 Created page with '==Problem 17== In the eight-term sequence <math>A,B,C,D,E,F,G,H</math>, the value of <math>C</math> is 5 and the sum of any three consecutive terms is 30. What is <math>A+H</mat…'
19:0219:02, 12 February 2011 diff hist +243 N 2011 AMC 10A Problems/Problem 16 Created page with '==Problem 16== Which of the following is equal to <math>\sqrt{9-6\sqrt{2}}+\sqrt{9+6\sqrt{2}}</math>? <math>\text{(A)}\,3\sqrt2 \qquad\text{(B)}\,2\sqrt6 \qquad\text{(C)}\,\frac…'
18:2718:27, 12 February 2011 diff hist +436 N 2011 AMC 10A Problems/Problem 14 Created page with '==Problem 14== A pair of standard 6-sided fair dice is rolled once. The sum of the numbers rolled determines the diameter of a circle. What is the probability that the numerica…'
13:0213:02, 12 February 2011 diff hist +250 N 2011 AMC 10A Problems/Problem 13 Created page with '==Problem 13== How many even integers are there between 200 and 700 whose digits are all different and come from the set {1,2,5,7,8,9}? <math>\text{(A)}\,12 \qquad\text{(B)}\,20…'
13:0013:00, 12 February 2011 diff hist −30 m 2011 AMC 10A Problems/Problem 12 →Problem 12

15:1515:15, 11 February 2011 diff hist +497 N 2011 AMC 10A Problems/Problem 12 Created page with '==Problem 12== The players on a basketball team made some three-point shots, some two-point shots, and some one-point free throws. They scored as many points with two-point shot…'
01:0701:07, 11 February 2011 diff hist +443 N 2011 AMC 10A Problems/Problem 11 Created page with '==Problem 11== Square <math>EFGH</math> has one vertex on each side of square <math>ABCD</math>. Point <math>E</math> is on <math>AB</math> with <math>AE=7\cdot EB</math>. What…'
00:5900:59, 11 February 2011 diff hist +525 N 2011 AMC 10A Problems/Problem 10 Created page with '==Problem 10== A majority of the 30 students in Ms. Deameanor's class bought pencils at the school bookstore. Each of these students bought the same number of pencils, and this …'
00:3600:36, 11 February 2011 diff hist +259 N 2011 AMC 10A Problems/Problem 7 Created page with '==Problem 7== Which of the following equations does NOT have a solution? <math>\text{(A)}\:(x+7)^2=0</math> <math>\text{(B)}\:|-3x|+5=0</math> <math>\text{(C)}\:\sqrt{-x}-2=0<…'
00:2900:29, 11 February 2011 diff hist +312 N 2011 AMC 10A Problems/Problem 6 Created page with '==Problem 6== Set <math>A</math> has <math>20</math> elements, and set <math>B</math> has <math>15</math> elements. What is the smallest possible number of elements in <math>A \…'

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