User contributions
(newest | oldest) View (newer 20 | older 20) (20 | 50 | 100 | 250 | 500)
- 09:42, 27 February 2009 (diff | hist) . . (+1,713) . . N 2009 AMC 12B Problems/Problem 21 (New page: == Problem == Ten women sit in <math>10</math> seats in a line. All of the <math>10</math> get up and then reseat themselves using all <math>10</math> seats, each sitting in the seat she w...)
- 12:57, 25 February 2009 (diff | hist) . . (+213) . . 2009 AMC 10A Problems/Problem 21 (fixed a bug in the solution)
- 11:12, 20 February 2009 (diff | hist) . . (+3,560) . . N 2002 AMC 12A Problems/Problem 18 (New page: == Problem == Let <math>C_1</math> and <math>C_2</math> be circles defined by <math>(x-10)^2 + y^2 = 36</math> and <math>(x+15)^2 + y^2 = 81</math> respectively. What is the length of the ...)
- 08:30, 20 February 2009 (diff | hist) . . (+1,676) . . N 2002 AMC 12A Problems/Problem 21 (New page: == Problem == Consider the sequence of numbers: <math>4,7,1,8,9,7,6,\dots</math> For <math>n>2</math>, the <math>n</math>-th term of the sequence is the units digit of the sum of the two ...)
- 08:16, 20 February 2009 (diff | hist) . . (+2,085) . . N 2002 AMC 12A Problems/Problem 19 (New page: == Problem == The graph of the function <math>f</math> is shown below. How many solutions does the equation <math>f(f(x))=6</math> have? <asy> size(300,300); defaultpen(fontsize(10pt)+l...)
- 08:05, 20 February 2009 (diff | hist) . . (+1,226) . . N 2002 AMC 12A Problems/Problem 20 (New page: == Problem == Suppose that <math>a</math> and <math>b</math> are digits, not both nine and not both zero, and the repeating decimal <math>0.\overline{ab}</math> is expressed as a fraction...)
- 18:51, 18 February 2009 (diff | hist) . . (+782) . . N 2002 AMC 12A Problems/Problem 17 (New page: == Problem == Several sets of prime numbers, such as <math>\{7,83,421,659\}</math> use each of the nine nonzero digits exactly once. What is the smallest possible sum such a set of primes...)
- 18:46, 18 February 2009 (diff | hist) . . (+1,131) . . N 2002 AMC 12A Problems/Problem 24 (New page: == Problem == Find the number of ordered pairs of real numbers <math>(a,b)</math> such that <math>(a+bi)^{2002} = a-bi</math>. <math> \text{(A) }1001 \qquad \text{(B) }1002 \qquad \text{...)
- 18:41, 18 February 2009 (diff | hist) . . (+1,853) . . 2002 AMC 12A Problems
- 18:33, 18 February 2009 (diff | hist) . . (+1,846) . . N 2002 AMC 12A Problems/Problem 16 (New page: {{duplicate|2002 AMC 12A #16 and 2002 AMC 10A #24}} ==Problem== Tina randomly selects two distinct numbers from the set {1, 2, 3, 4, 5...)
- 18:32, 18 February 2009 (diff | hist) . . (-1,616) . . 2002 AMC 10A Problems/Problem 24 (Redirecting to 2002 AMC 12A Problems/Problem 16) (current)
- 18:32, 18 February 2009 (diff | hist) . . (+268) . . 2002 AMC 12A Problems (→Problem 16)
- 18:30, 18 February 2009 (diff | hist) . . (+622) . . N 2002 AMC 12A Problems/Problem 14 (New page: == Problem == For all positive integers <math>n</math>, let <math>f(n)=\log_{2002} n^2</math>. Let <math>N=f(11)+f(13)+f(14)</math>. Which of the following relations is true? <math> \tex...)
- 18:28, 18 February 2009 (diff | hist) . . (+1,049) . . N 2002 AMC 12A Problems/Problem 13 (New page: == Problem == Two different positive numbers <math>a</math> and <math>b</math> each differ from their reciprocals by <math>1</math>. What is <math>a+b</math>? <math> \text{(A) }1 \qquad ...)
- 18:15, 18 February 2009 (diff | hist) . . (+2,026) . . N 2002 AMC 12A Problems/Problem 15 (New page: {{duplicate|2002 AMC 12A #15 and 2002 AMC 10A #21}} == Problem == The mean, median, unique mode, and range of a collection of eight in...)
- 18:15, 18 February 2009 (diff | hist) . . (-1,823) . . 2002 AMC 10A Problems/Problem 21 (Redirecting to 2002 AMC 12A Problems/Problem 15) (current)
- 18:13, 18 February 2009 (diff | hist) . . (+514) . . 2002 AMC 12A Problems
- 16:09, 18 February 2009 (diff | hist) . . (-925) . . 2002 AMC 10A Problems/Problem 14 (Redirecting to 2002 AMC 12A Problems/Problem 12) (current)
- 16:09, 18 February 2009 (diff | hist) . . (+1,283) . . N 2002 AMC 12A Problems/Problem 12 (New page: {{duplicate|2002 AMC 12A #12 and 2002 AMC 10A #14}} == Problem == Both roots of the quadratic equation <math>x^2 - 63x + k = 0</math>...)
- 16:06, 18 February 2009 (diff | hist) . . (+2,416) . . N 2002 AMC 12A Problems/Problem 11 (New page: {{duplicate|2002 AMC 12A #11 and 2002 AMC 10A #12}} == Problem == Mr. Earl E. Bird gets up every day at 8:00 AM to go to work. If he d...)
(newest | oldest) View (newer 20 | older 20) (20 | 50 | 100 | 250 | 500)