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• Joining an ARML team
  Missouri sends two teams, Red and Blue, and a few alternates for a total of 36-37 students to the Iowa site ARML c
  21 KB (3,500 words) - 18:41, 23 April 2024
• Pigeonhole Principle
  ''If a Martian has an infinite number of red, blue, yellow, and black socks in a drawer, what is the minimum number of socks t ...realize that after we select four socks of different colors (one red, one blue, one yellow, and one black), the Martian can't select a fifth sock without
  11 KB (1,985 words) - 21:03, 5 August 2023
• Kansas MathCounts
  :#Allen Zhu (8th grade, Blue Valley MS, Overland Park) :#Spencer Ho (8th grade, Blue Valley MS, Overland Park)
  4 KB (617 words) - 18:00, 3 March 2024
• Menelaus' theorem
  draw((0,0)--(10,0)--(7,6)--(0,0),blue+0.75); draw((0,0)--(10,0)--(7,6)--(0,0),blue+0.75);
  5 KB (804 words) - 03:01, 12 June 2023
• ARML historical results
  | [[Chicago ARML]] (Chicago Blue) | Nassau-Suffolk Blue ([[Nassau County ARML]] [[Suffolk County ARML]])
  19 KB (2,632 words) - 14:31, 12 June 2022
• Circle
  {{asy image|<asy>unitsize(2cm);draw(unitcircle,blue);</asy>|right|A basic circle.}} ...made infinitely thin, the little green arcs in the diagram will become the blue line and the figure will approach the shape of a rectangle with length <mat
  9 KB (1,555 words) - 20:05, 2 November 2023
• Angle bisector
  draw(A--B--C--cycle,blue); draw(C--D,blue);
  3 KB (575 words) - 15:27, 19 March 2023
• Without loss of generality
  * If three objects are each painted either red or blue, then there must be at least two objects of the same color. ...red, then we are finished; if not, then the other two objects must both be blue and we are still finished.
  2 KB (280 words) - 15:30, 22 February 2024
• Exponential form
  draw(B--D,blue); label("$r$",(B+D)/2,p=blue,NW);
  1 KB (238 words) - 22:51, 20 February 2022
• Mathematical Olympiad Summer Program
  ...opping down to Blue or occasionally members of Red promoting themselves to Blue. The three groups take classes and practice tests separately and are given ...Students are divided into teams of five, in 2008 consisting of one or two blue MOPpers each, and work on a set of thirty problems for approximately half a
  6 KB (936 words) - 10:37, 27 November 2023
• Root-Mean Square-Arithmetic Mean-Geometric Mean-Harmonic mean Inequality
  draw(P--Q,blue); label("GM",(P+Q)/2,E,blue);
  5 KB (912 words) - 20:06, 14 March 2023
• Incenter
  ...C'' with [[incenter]] ''I'', with [[angle bisector]]s (red), [[incircle]] (blue), and [[inradius|inradii]] (green)]]
  2 KB (381 words) - 19:38, 24 November 2011
• 2003 AMC 12A Problems
  ...number on each red card divides evenly into the number on each neighboring blue card. What is the sum of the numbers on the middle three cards?
  13 KB (1,955 words) - 21:06, 19 August 2023
• 2002 AMC 12A Problems
  ...a red center square, as shown. Let <math>B</math> be the total area of the blue triangles, <math>W</math> the total area of the white squares, and <math>R< fill((-4,-4)--(-4,4)--(4,4)--(4,-4)--cycle,blue);
  12 KB (1,792 words) - 13:06, 19 February 2020
• 2004 AMC 12B Problems
  Each face of a [[cube]] is painted either red or blue, each with probability <math>1/2</math>. The color of each face is determin
  13 KB (2,049 words) - 13:03, 19 February 2020
• 2005 AMC 12A Problems/Problem 25
  ...non-adjacent, non-parallel edges also gives us more equilateral triangles (blue triangle). Notice that picking these three edges leaves two vertices alone draw((1,0,0)--(2,2,1)--(0,1,2)--cycle,blue);
  4 KB (498 words) - 00:46, 4 August 2023
• 2006 AMC 10A Problems/Problem 15
  draw((6,0){up}..{left}(0,6),blue); draw((-6,0){up}..{right}(0,6),blue);
  3 KB (532 words) - 17:49, 13 August 2023
• 2005 AIME II Problems/Problem 15
  pair P = (x, (3 * (25 - x^2 / 4))^.5 + 12); dot(P, blue); D(CR(P, ((P.x - 5)^2 + (P.y - 12)^2)^.5 - 4) , blue + d + linetype("4 4"));
  12 KB (2,000 words) - 13:17, 28 December 2020
• 2004 AIME II Problems/Problem 2
  A jar has <math>10</math> red candies and <math>10</math> blue candies. Terry picks two candies at random, then Mary picks two of the rema ...frac{28}{153} = \frac{14}{323}</math>. The same calculation works for the blue candies.
  2 KB (330 words) - 13:42, 1 January 2015
• 2004 AIME II Problems
  A jar has 10 red candies and 10 blue candies. Terry picks two candies at random, then Mary picks two of the rema
  9 KB (1,410 words) - 05:05, 20 February 2019

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