User contributions
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- 18:29, 27 May 2011 (diff | hist) . . (0) . . 2007 AMC 10B Problems/Problem 4 (→Solution)
- 18:28, 27 May 2011 (diff | hist) . . (+2,711) . . N 2007 AMC 10B Problems/Problem 19 (Created page with '==Problem 19== The wheel shown is spun twice, and the randomly determined numbers opposite the pointer are recorded. The first number is divided by <math>4,</math> and the secon…')
- 17:29, 27 May 2011 (diff | hist) . . (+944) . . N 2007 AMC 10B Problems/Problem 8 (Created page with '==Problem 8== On the trip home from the meeting where this AMC10 was constructed, the Contest Chair noted that his airport parking receipt had digits of the form <math>bbcac,</m…')
- 17:07, 27 May 2011 (diff | hist) . . (+1,102) . . N 2007 AMC 10B Problems/Problem 7 (Created page with '==Problem 7== All sides of the convex pentagon <math>ABCDE</math> are of equal length, and <math>\angle A= \angle B = 90^\circ.</math> What is the degree measure of <math>\angle…')
- 16:31, 27 May 2011 (diff | hist) . . (+1,145) . . N 2007 AMC 10B Problems/Problem 6 (Created page with '==Problem 6== The <math>2007 AMC10</math> will be scored by awarding <math>6</math> points for each correct response, <math>0</math> points for each incorrect response, and <mat…')
- 16:25, 27 May 2011 (diff | hist) . . (+852) . . N 2007 AMC 10B Problems/Problem 4 (Created page with '==Problem 4== The point <math>O</math> is the center of the circle circumscribed about <math>\triangle ABC,</math> with <math>\angle BOC=120^\circ</math> and <math>\angle AOB=14…')
- 16:14, 27 May 2011 (diff | hist) . . (+373) . . N 2007 AMC 10B Problems/Problem 2 (Created page with '==Problem 2== Define the operation <math>\star</math> by <math>a \star b = (a+b)b.</math> What is <math>(3 \star 5) - (5 \star 3)?</math> <math>\textbf{(A) } -16 \qquad\textbf{…')
- 16:06, 27 May 2011 (diff | hist) . . (+202) . . m 2007 AMC 10B Problems (→Problem 19)
- 15:58, 27 May 2011 (diff | hist) . . (+1,081) . . 2007 AMC 10B Problems (added picture to 19)
- 15:29, 27 May 2011 (diff | hist) . . (+789) . . 2007 AMC 10B Problems (added picture to 18)
- 15:13, 27 May 2011 (diff | hist) . . (+12,700) . . N 2007 AMC 10B Problems (no pictures yet)
- 14:10, 27 May 2011 (diff | hist) . . (+451) . . 2002 AMC 10B Problems (→Problem 24)
- 14:08, 27 May 2011 (diff | hist) . . (+342) . . 2002 AMC 10B Problems (→Problem 23)
- 14:06, 27 May 2011 (diff | hist) . . (+480) . . 2002 AMC 10B Problems (→Problem 21)
- 14:04, 27 May 2011 (diff | hist) . . (+283) . . 2002 AMC 10B Problems (→Problem 20)
- 14:03, 27 May 2011 (diff | hist) . . (+348) . . 2002 AMC 10B Problems (→Problem 19)
- 13:59, 27 May 2011 (diff | hist) . . (+65) . . m 2002 AMC 10B Problems
- 13:57, 27 May 2011 (diff | hist) . . (+818) . . 2002 AMC 10B Problems (→Problem 5)
- 13:43, 27 May 2011 (diff | hist) . . (+2) . . m 2002 AMC 10B Problems (→Problem 4)
- 13:42, 27 May 2011 (diff | hist) . . (+13) . . m 2002 AMC 10B Problems (→Problem 3)
- 13:42, 27 May 2011 (diff | hist) . . (+26) . . 2002 AMC 10B Problems (→Problem 2)
- 13:41, 27 May 2011 (diff | hist) . . (+40) . . m 2002 AMC 10B Problems (→Problem 1)
- 23:55, 26 May 2011 (diff | hist) . . (+4) . . 2003 AMC 10B Problems (→Problem 22)
- 23:55, 26 May 2011 (diff | hist) . . (+12,168) . . N 2003 AMC 10B Problems (no pictures yet)
- 18:55, 26 May 2011 (diff | hist) . . (+1,398) . . N 2011 AMC 10B Problems/Problem 19 (Created page with '== Problem 19 == What is the product of all the roots of the equation <cmath>\sqrt{5 | x | + 8} = \sqrt{x^2 - 16}.</cmath> <math> \textbf{(A)}\ -64 \qquad\textbf{(B)}\ -24 \qqu…')
- 18:35, 26 May 2011 (diff | hist) . . (+483) . . 2011 AMC 10B Problems (→Problem 17)
- 18:35, 26 May 2011 (diff | hist) . . (+202) . . 2011 AMC 10B Problems/Problem 17
- 18:02, 26 May 2011 (diff | hist) . . (+76) . . 2011 AMC 10B Problems (→Problem 8)
- 23:53, 25 May 2011 (diff | hist) . . (+1,546) . . N 2011 AMC 10B Problems/Problem 17 (Created page with '== Problem 17 == In the given circle, the diameter <math>\overline{EB}</math> is parallel to <math>\overline{DC}</math>, and <math>\overline{AB}</math> is parallel to <math>\ove…')
- 23:15, 25 May 2011 (diff | hist) . . (+1,130) . . 2011 AMC 10B Problems/Problem 18
- 22:30, 25 May 2011 (diff | hist) . . (+2,225) . . N 2011 AMC 10B Problems/Problem 16 (Created page with '== Problem 16 == A dart board is a regular octagon divided into regions as shown. Suppose that a dart thrown at the board is equally likely to land anywhere on the board. What i…')
- 20:03, 25 May 2011 (diff | hist) . . (+1,266) . . N 2011 AMC 10B Problems/Problem 15 (Created page with '== Problem 15 == Let <math>@</math> denote the "averaged with" operation: <math>a @ b = \frac{a+b}{2}</math>. Which of the following distributive laws hold for all numbers <math…')
- 19:50, 25 May 2011 (diff | hist) . . (+718) . . N 2011 AMC 10B Problems/Problem 14 (Created page with '== Problem 14 == A rectangular parking lot has a diagonal of <math>25</math> meters and an area of <math>168</math> square meters. In meters, what is the perimeter of the parkin…')
- 19:44, 25 May 2011 (diff | hist) . . (+852) . . N 2011 AMC 10B Problems/Problem 13 (Created page with '== Problem 13 == Two real numbers are selected independently at random from the interval <math>[-20, 10]</math>. What is the probability that the product of those numbers is gre…')
- 19:38, 25 May 2011 (diff | hist) . . (+326) . . 2011 AMC 10B Problems/Problem 11
- 19:29, 25 May 2011 (diff | hist) . . (+1,470) . . N 2011 AMC 10B Problems/Problem 9 (Created page with '== Problem 9 == The area of <math>\triangle</math><math>EBD</math> is one third of the area of <math>3-4-5</math> <math>\triangle</math><math>ABC</math>. Segment <math>DE</math>…')
- 19:09, 25 May 2011 (diff | hist) . . (+49) . . 2011 AMC 10B Problems (→Problem 9)
- 18:48, 25 May 2011 (diff | hist) . . (+1,036) . . N 2011 AMC 10B Problems/Problem 7 (Created page with '== Problem 7 == The sum of two angles of a triangle is <math>\frac{6}{5}</math> of a right angle, and one of these two angles is <math>30^{\circ}</math> larger than the other. W…')
- 18:37, 25 May 2011 (diff | hist) . . (+763) . . N 2011 AMC 10B Problems/Problem 6 (Created page with '== Problem 6 == On Halloween Casper ate <math>\frac{1}{3}</math> of his candies and then gave <math>2</math> candies to his brother. The next day he ate <math>\frac{1}{3}</math>…')
- 18:16, 25 May 2011 (diff | hist) . . (+782) . . N 2011 AMC 10B Problems/Problem 5 (Created page with '== Problem 5 == In multiplying two positive integers <math>a</math> and <math>b</math>, Ron reversed the digits of the two-digit number <math>a</math>. His erroneous product was…')
- 18:09, 25 May 2011 (diff | hist) . . (+34) . . 2011 AMC 10B Problems/Problem 4
- 18:00, 25 May 2011 (diff | hist) . . (+146) . . 2011 AMC 10B Problems/Problem 3
- 17:57, 25 May 2011 (diff | hist) . . (+226) . . 2011 AMC 10B Problems/Problem 2
- 17:53, 25 May 2011 (diff | hist) . . (+255) . . 2011 AMC 10B Problems/Problem 1
- 00:55, 25 May 2011 (diff | hist) . . (+334) . . 2011 AMC 10B Problems (→Problem 16)
- 00:48, 25 May 2011 (diff | hist) . . (+428) . . 2011 AMC 10B Problems (→Problem 9)
- 00:28, 25 May 2011 (diff | hist) . . (+1) . . m 2011 AMC 10B Problems (→Problem 25)
- 00:25, 25 May 2011 (diff | hist) . . (+2) . . 2011 AMC 10B Problems (→Problem 25)
- 00:22, 25 May 2011 (diff | hist) . . (+13) . . 2011 AMC 10B Problems (→Problem 23)
- 00:21, 25 May 2011 (diff | hist) . . (+12,185) . . N 2011 AMC 10B Problems (Created page with '== Problem 1 == What is <cmath>\dfrac{2+4+6}{1+3+5} - \dfrac{1+3+5}{2+4+6}</cmath>? <math> \textbf{(A)}\ -1\qquad\textbf{(B)}\ \frac{5}{36}\qquad\textbf{(C)}\ \frac{7}{12}\qqua…')
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