User contributions
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- 12:49, 26 January 2009 (diff | hist) . . (+1,031) . . 2005 Alabama ARML TST Problems/Problem 14 (→Solution)
- 12:06, 26 January 2009 (diff | hist) . . (-8) . . m 2005 Alabama ARML TST Problems/Problem 2 (→Solution) (current)
- 08:40, 26 January 2009 (diff | hist) . . (+1,337) . . 2007 Alabama ARML TST Problems/Problem 11 (alternate solution and clarification) (current)
- 08:09, 26 January 2009 (diff | hist) . . (+161) . . 2007 Alabama ARML TST Problems/Problem 14 (→Step 5: Handling the remaining part of p: fixed a small mistake) (current)
- 23:38, 25 January 2009 (diff | hist) . . (+3,544) . . N 2007 Alabama ARML TST Problems/Problem 14 (New page: ==Problem== Find the sum of the ''real'' roots of <cmath>x^6+145x^4-2007x^3+145x^2+1=0.</cmath> ==Solution== === Step 1: using the symmetry === Let <math>p(x)=x^6+145x^4-2007x^3+145x^2...)
- 19:56, 25 January 2009 (diff | hist) . . (+798) . . 1986 AJHSME Problems/Problem 21
- 19:47, 25 January 2009 (diff | hist) . . (+545) . . 1986 AJHSME Problems/Problem 23
- 19:43, 25 January 2009 (diff | hist) . . (+497) . . 1986 AJHSME Problems/Problem 24
- 19:36, 25 January 2009 (diff | hist) . . (+293) . . 1986 AJHSME Problems/Problem 20
- 19:30, 25 January 2009 (diff | hist) . . (+409) . . 1986 AJHSME Problems/Problem 19
- 16:33, 25 January 2009 (diff | hist) . . (+581) . . 2008 AMC 10B Problems/Problem 20
- 16:25, 25 January 2009 (diff | hist) . . (+439) . . 2008 AMC 10B Problems/Problem 7
- 16:19, 25 January 2009 (diff | hist) . . (+160) . . 2008 AMC 10B Problems
- 16:16, 25 January 2009 (diff | hist) . . (+143) . . m 2008 AMC 10B Problems (→Problem 6)
- 16:15, 25 January 2009 (diff | hist) . . (+5,533) . . 2008 AMC 10B Problems (copied problem statements from their individual pages)
- 16:13, 25 January 2009 (diff | hist) . . (+136) . . m 2008 AMC 10B Problems/Problem 25 (→Problem)
- 16:12, 25 January 2009 (diff | hist) . . (+148) . . m 2008 AMC 10B Problems/Problem 24 (→Problem)
- 16:11, 25 January 2009 (diff | hist) . . (+247) . . m 2008 AMC 10B Problems/Problem 22
- 16:07, 25 January 2009 (diff | hist) . . (+196) . . 2008 AMC 10B Problems/Problem 21
- 16:05, 25 January 2009 (diff | hist) . . (+278) . . m 2008 AMC 10B Problems/Problem 20 (→Problem)
- 16:04, 25 January 2009 (diff | hist) . . (+37) . . m 2008 AMC 10B Problems/Problem 19 (→Problem)
- 16:02, 25 January 2009 (diff | hist) . . (+208) . . m 2008 AMC 10B Problems/Problem 18
- 15:59, 25 January 2009 (diff | hist) . . (+1) . . m 2008 AMC 10B Problems/Problem 16 (→Problem)
- 15:58, 25 January 2009 (diff | hist) . . (+135) . . m 2008 AMC 10B Problems/Problem 15 (→Problem)
- 15:57, 25 January 2009 (diff | hist) . . (+83) . . 2008 AMC 10B Problems/Problem 12 (→Problem)
- 15:53, 25 January 2009 (diff | hist) . . (+1,843) . . N 2004 AMC 10B Problems/Problem 13 (New page: == Problem == In the United States, coins have the following thicknesses: penny, <math>1.55</math> mm; nickel, <math>1.95</math> mm; dime, <math>1.35</math> mm; quarter, <math>1.75</math> ...)
- 20:13, 24 January 2009 (diff | hist) . . (+1,193) . . N 2004 AMC 10B Problems/Problem 14 (New page: == Problem == A bag initially contains red marbles and blue marbles only, with more blue than red. Red marbles are added to the bag until only <math>\frac{1}{3}</math> of the marbles in t...)
- 19:34, 24 January 2009 (diff | hist) . . (+1,289) . . N 2004 AMC 10B Problems/Problem 22 (New page: ==Problem== A triangle with sides of 5, 12, and 13 has both an inscribed and a circumscribed circle. What is the distance between the centers of those circles? <math> \mathrm{(A) \ } \fra...)
- 18:50, 24 January 2009 (diff | hist) . . (+4) . . m 2004 AMC 10B Problems/Problem 15
- 18:50, 24 January 2009 (diff | hist) . . (+1,339) . . N 2004 AMC 10B Problems/Problem 15 (New page: ==Problem== Patty has <math>20</math> coins consisting of nickels and dimes. If her nickels were dimes and her dimes were nickels, she would have <math>70</math> cents more. How much are ...)
- 18:13, 24 January 2009 (diff | hist) . . (+1,497) . . N 2004 AMC 10B Problems/Problem 16 (New page: == Problem == Three circles of radius <math>1</math> are externally tangent to each other and internally tangent to a larger circle. What is the radius of the large circle? <math> \mathr...)
- 16:27, 24 January 2009 (diff | hist) . . (+1,765) . . N 2004 AMC 10B Problems/Problem 17 (New page: ==Problem== The two digits in Jack's age are the same as the digits in Bill's age, but in reverse order. In five years Jack will be twice as old as Bill will be then. What is the differen...)
- 16:15, 24 January 2009 (diff | hist) . . (-3) . . m 2004 AMC 10B Problems (→Problem 17)
- 15:58, 24 January 2009 (diff | hist) . . (+4) . . m 2004 AMC 10B Problems/Problem 19
- 15:58, 24 January 2009 (diff | hist) . . (+1,804) . . N 2004 AMC 10B Problems/Problem 19 (New page: ==Problem== In the sequence <math>2001</math>, <math>2002</math>, <math>2003</math>, <math>\ldots</math> , each term after the third is found by subtracting the previous term from the sum...)
- 15:42, 24 January 2009 (diff | hist) . . (0) . . m 2004 AMC 10B Problems (→Problem 19)
- 15:39, 24 January 2009 (diff | hist) . . (+1,469) . . N 2004 AMC 10B Problems/Problem 21 (New page: ==Problem== Let <math>1</math>; <math>4</math>; <math>\ldots</math> and <math>9</math>; <math>16</math>; <math>\ldots</math> be two arithmetic progressions. The set <math>S</math> is the ...)
- 15:20, 24 January 2009 (diff | hist) . . (+1,970) . . N 2004 AMC 10B Problems/Problem 23 (New page: ==Problem== Each face of a cube is painted either red or blue, each with probability 1/2. The color of each face is determined independently. What is the probability that the painted cube ...)
- 15:02, 24 January 2009 (diff | hist) . . (+675) . . N 2004 AMC 10B Problems/Problem 3 (New page: ==Problem== At each basketball practice last week, Jenny made twice as many free throws as she made at the previous practice. At her fifth practice she made 48 free throws. How many free t...)
- 15:01, 24 January 2009 (diff | hist) . . (+538) . . N 2004 AMC 10B Problems/Problem 2 (New page: ==Problem== How many two-digit positive integers have at least one 7 as a digit? <math> \mathrm{(A) \ } 10 \qquad \mathrm{(B) \ } 18\qquad \mathrm{(C) \ } 19 \qquad \mathrm{(D) \ } 20\qq...)
- 14:54, 24 January 2009 (diff | hist) . . (+701) . . 2003 AMC 10A Problems/Problem 25 (formatting and notes)
- 14:38, 24 January 2009 (diff | hist) . . (+525) . . 2002 AMC 10B Problems/Problem 11
- 14:27, 24 January 2009 (diff | hist) . . (+1,548) . . 2002 AMC 10A Problems/Problem 25 (alternate solution)
- 13:38, 24 January 2009 (diff | hist) . . (+739) . . 2002 AMC 10A Problems/Problem 21 (→Solution)
- 13:15, 24 January 2009 (diff | hist) . . (+214) . . m 2002 AMC 10A Problems/Problem 15
- 12:52, 24 January 2009 (diff | hist) . . (+13) . . m 2002 AMC 10A Problems/Problem 10 (→Solution 1)
- 12:51, 24 January 2009 (diff | hist) . . (+34) . . 2002 AMC 10A Problems/Problem 10 (fixed a mistake)
- 12:37, 24 January 2009 (diff | hist) . . (+913) . . 2002 AMC 10A Problems/Problem 3
- 12:19, 24 January 2009 (diff | hist) . . (+382) . . m 2002 AMC 10A Problems/Problem 2
- 12:10, 24 January 2009 (diff | hist) . . (+1,341) . . 2001 AMC 10 Problems
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