User contributions
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- 09:38, 13 February 2009 (diff | hist) . . (+335) . . 2009 AMC 10A Problems (→Problem 23)
- 09:33, 13 February 2009 (diff | hist) . . (+561) . . 2009 AMC 10A Problems (→Problem 21)
- 09:31, 13 February 2009 (diff | hist) . . (+403) . . 2009 AMC 10A Problems (→Problem 19)
- 09:28, 13 February 2009 (diff | hist) . . (+351) . . 2009 AMC 10A Problems (→Problem 17)
- 09:18, 13 February 2009 (diff | hist) . . (+1,668) . . N 2009 AMC 10A Problems/Problem 10 (New page: == Problem == Triangle <math>ABC</math> has a right angle at <math>B</math>. Point <math>D</math> is the foot of the altitude from <math>B</math>, <math>AD=3</math>, and <math>DC=4</math>...)
- 09:01, 13 February 2009 (diff | hist) . . (+638) . . 2009 AMC 10A Problems (→Problem 10)
- 08:55, 13 February 2009 (diff | hist) . . (+45) . . N 2009 AMC 10A Problems/Problem 14 (Redirecting to 2009 AMC 12A Problems/Problem 8) (current)
- 08:55, 13 February 2009 (diff | hist) . . (+444) . . 2009 AMC 10A Problems (→Problem 14)
- 08:54, 13 February 2009 (diff | hist) . . (+104) . . 2009 AMC 12A Problems/Problem 8
- 08:52, 13 February 2009 (diff | hist) . . (+1,116) . . N 2009 AMC 10A Problems/Problem 16 (New page: == Problem == Let <math>a</math>, <math>b</math>, <math>c</math>, and <math>d</math> be real numbers with <math>|a-b|=2</math>, <math>|b-c|=3</math>, and <math>|c-d|=4</math>. What is the...)
- 08:47, 13 February 2009 (diff | hist) . . (+234) . . 2009 AMC 10A Problems (→Problem 16)
- 08:44, 13 February 2009 (diff | hist) . . (+1,701) . . N 2009 AMC 10A Problems/Problem 18 (New page: == Problem == At Jefferson Summer Camp, <math>60\%</math> of the children play soccer, <math>30\%</math> of the children swim, and <math>40\%</math> of the soccer players swim. To the nea...)
- 08:28, 13 February 2009 (diff | hist) . . (+261) . . 2009 AMC 10A Problems (→Problem 18)
- 08:21, 13 February 2009 (diff | hist) . . (+1,375) . . N 2009 AMC 10A Problems/Problem 20 (New page: == Problem == Andrea and Lauren are <math>20</math> kilometers apart. They bike toward one another with Andrea traveling three times as fast as Lauren, and the distance between them decre...)
- 08:13, 13 February 2009 (diff | hist) . . (+419) . . 2009 AMC 10A Problems (→Problem 20)
- 05:51, 13 February 2009 (diff | hist) . . (+1,557) . . N 2009 AMC 10A Problems/Problem 22 (New page: == Problem == Two cubical dice each have removable numbers <math>1</math> through <math>6</math>. The twelve numbers on the two dice are removed, put into a bag, then drawn one at a time ...)
- 05:45, 13 February 2009 (diff | hist) . . (+435) . . 2009 AMC 10A Problems (→Problem 22)
- 05:41, 13 February 2009 (diff | hist) . . (+2,006) . . N 2009 AMC 10A Problems/Problem 24 (New page: == Problem == Three distinct vertices of a cube are chosen at random. What is the probability that the plane determined by these three vertices contains points inside the cube? <math> \m...)
- 05:31, 13 February 2009 (diff | hist) . . (+219) . . 2009 AMC 10A Problems (→Problem 24)
- 05:26, 13 February 2009 (diff | hist) . . (+521) . . 2009 AMC 10A Problems (→Problem 6)
- 05:17, 13 February 2009 (diff | hist) . . (+46) . . N 2009 AMC 10A Problems/Problem 25 (Redirecting to 2009 AMC 12A Problems/Problem 18) (current)
- 05:17, 13 February 2009 (diff | hist) . . (+163) . . m 2009 AMC 12A Problems/Problem 18
- 05:16, 13 February 2009 (diff | hist) . . (+46) . . N 2009 AMC 10A Problems/Problem 15 (Redirecting to 2009 AMC 12A Problems/Problem 11) (current)
- 05:16, 13 February 2009 (diff | hist) . . (+1,742) . . 2009 AMC 10A Problems
- 05:15, 13 February 2009 (diff | hist) . . (+152) . . m 2009 AMC 12A Problems/Problem 11
- 05:12, 13 February 2009 (diff | hist) . . (+45) . . N 2009 AMC 10A Problems/Problem 13 (Redirecting to 2009 AMC 12A Problems/Problem 6) (current)
- 05:11, 13 February 2009 (diff | hist) . . (+151) . . m 2009 AMC 12A Problems/Problem 6
- 05:11, 13 February 2009 (diff | hist) . . (+200) . . 2009 AMC 10A Problems (→Problem 13)
- 05:10, 13 February 2009 (diff | hist) . . (+46) . . N 2009 AMC 10A Problems/Problem 12 (Redirecting to 2009 AMC 12A Problems/Problem 10) (current)
- 05:09, 13 February 2009 (diff | hist) . . (+152) . . m 2009 AMC 12A Problems/Problem 10
- 05:09, 13 February 2009 (diff | hist) . . (+561) . . 2009 AMC 10A Problems (→Problem 12)
- 05:08, 13 February 2009 (diff | hist) . . (+45) . . m 2009 AMC 12A Problems/Problem 2
- 05:08, 13 February 2009 (diff | hist) . . (+45) . . m 2009 AMC 12A Problems/Problem 4
- 05:07, 13 February 2009 (diff | hist) . . (+151) . . 2009 AMC 12A Problems/Problem 5
- 05:07, 13 February 2009 (diff | hist) . . (+45) . . N 2009 AMC 10A Problems/Problem 11 (Redirecting to 2009 AMC 12A Problems/Problem 5) (current)
- 05:07, 13 February 2009 (diff | hist) . . (+258) . . 2009 AMC 10A Problems (→Problem 11)
- 05:06, 13 February 2009 (diff | hist) . . (+45) . . N 2009 AMC 10A Problems/Problem 3 (Redirecting to 2009 AMC 12A Problems/Problem 2) (current)
- 05:06, 13 February 2009 (diff | hist) . . (+103) . . m 2009 AMC 12A Problems/Problem 2
- 05:04, 13 February 2009 (diff | hist) . . (+45) . . N 2009 AMC 10A Problems/Problem 2 (Redirecting to 2009 AMC 12A Problems/Problem 4) (current)
- 05:04, 13 February 2009 (diff | hist) . . (+103) . . 2009 AMC 12A Problems/Problem 4
- 05:00, 13 February 2009 (diff | hist) . . (+708) . . N 2009 AMC 10A Problems/Problem 9 (New page: == Problem == Positive integers <math>a</math>, <math>b</math>, and <math>2009</math>, with <math>a<b<2009</math>, form a geometric sequence with an integer ratio. What is <math>a</math>?...)
- 04:57, 13 February 2009 (diff | hist) . . (+14) . . m 2009 AMC 10A Problems (→Problem 8)
- 04:57, 13 February 2009 (diff | hist) . . (+696) . . m 2009 AMC 10A Problems/Problem 8
- 04:54, 13 February 2009 (diff | hist) . . (+2,688) . . 2009 AMC 10A Problems
- 04:46, 13 February 2009 (diff | hist) . . (+571) . . N 2009 AMC 12A Problems/Problem 2 (New page: == Problem == Which of the following is equal to <math>1 + \frac {1}{1 + \frac {1}{1 + 1}}</math>? <math>\textbf{(A)}\ \frac {5}{4} \qquad \textbf{(B)}\ \frac {3}{2} \qquad \textbf{(C)}\ ...)
- 04:44, 13 February 2009 (diff | hist) . . (+1,001) . . N 2009 AMC 12A Problems/Problem 3 (New page: == Problem == What number is one third of the way from <math>\frac14</math> to <math>\frac34</math>? <math>\textbf{(A)}\ \frac {1}{3} \qquad \textbf{(B)}\ \frac {5}{12} \qquad \textbf{(C)...)
- 04:39, 13 February 2009 (diff | hist) . . (+1,068) . . N 2009 AMC 12A Problems/Problem 4 (New page: == Problem == Four coins are picked out of a piggy bank that contains a collection of pennies, nickels, dimes, and quarters. Which of the following could <em>not</em> be the total value of...)
- 04:33, 13 February 2009 (diff | hist) . . (+2) . . m 2009 AMC 12A Problems (→Problem 4)
- 17:00, 12 February 2009 (diff | hist) . . (+1,046) . . N 2009 AMC 12A Problems/Problem 9 (New page: == Problem == Suppose that <math>f(x+3)=3x^2 + 7x + 4</math> and <math>f(x)=ax^2 + bx + c</math>. What is <math>a+b+c</math>? <math>\textbf{(A)}\ -1 \qquad \textbf{(B)}\ 0 \qquad \textbf...)
- 16:49, 12 February 2009 (diff | hist) . . (+236) . . 2009 AMC 12A Problems (→Problem 9)
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