(newest | oldest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)

• 15:17, 19 October 2014 (diff | hist) . . (+502)‎ . . N 2010 UNCO Math Contest II Problems/Problem 5 ‎ (Created page with "== Problem == (a) In the <math>4 \times 4</math> grid shown, four coins are randomly placed in different squares. What is the probability that no two coins lie in the same row ...")
• 15:16, 19 October 2014 (diff | hist) . . (+198)‎ . . N 2010 UNCO Math Contest II Problems/Problem 4 ‎ (Created page with "== Problem == Factor <math>n^4+2n^3+2n^2+2n+1</math> completely. == Solution == == See also == {{UNC Math Contest box|year=2010|n=II|num-b=3|num-a=5}} [[Category:Introductor...")
• 15:15, 19 October 2014 (diff | hist) . . (+368)‎ . . N 2010 UNCO Math Contest II Problems/Problem 3 ‎ (Created page with "== Problem == Suppose <math>r, s</math>, and <math>t</math> are three different positive integers and that their product is <math>48</math>, i.e., <math>rst=48.</math> What is t...")
• 15:15, 19 October 2014 (diff | hist) . . (+633)‎ . . N 2010 UNCO Math Contest II Problems/Problem 2 ‎ (Created page with "== Problem == The rectangle has dimensions <math>67 \times 75</math>. The diagonal <math>AB</math> is divided into five segments of equal length. Find the total area of the shade...")
• 15:14, 19 October 2014 (diff | hist) . . (+310)‎ . . N 2010 UNCO Math Contest II Problems/Problem 1 ‎ (Created page with "== Problem == Find a <math>3</math>-digit integer less than <math>200</math> where each digit is odd and the sum of the cubes of the digits is the original number. == Solution ...")
• 15:13, 19 October 2014 (diff | hist) . . (+63)‎ . . m 2014 UNCO Math Contest II ‎
• 15:12, 19 October 2014 (diff | hist) . . (+126)‎ . . m 2013 UNCO Math Contest II ‎
• 15:11, 19 October 2014 (diff | hist) . . (+126)‎ . . m 2012 UNCO Math Contest II ‎
• 14:52, 19 October 2014 (diff | hist) . . (+11)‎ . . 2014 UNCO Math Contest II Problems/Problem 10 ‎ (→‎See also)
• 14:51, 19 October 2014 (diff | hist) . . (+1,521)‎ . . N 2014 UNCO Math Contest II Problems/Problem 10 ‎ (Created page with "== Problem == The March Hare invites <math>11</math> guests to a tea party. He randomly assigns to each guest either tea or cake, but no guest receives both. The guests know tha...")
• 14:50, 19 October 2014 (diff | hist) . . (+313)‎ . . N 2014 UNCO Math Contest II Problems/Problem 9 ‎ (Created page with "== Problem == In the Queen’s croquet, as described in Problem <math>8</math>, what is the probability that the ball hits the goal post the <math>n</math>th time the ball is hi...")
• 14:49, 19 October 2014 (diff | hist) . . (+992)‎ . . N 2014 UNCO Math Contest II Problems/Problem 8 ‎ (Created page with "== Problem == In the Queen’s croquet, a game begins with the ball at the bottom wicket. All players hit the same ball. Each player hits the ball from the place the previous pl...")
• 14:48, 19 October 2014 (diff | hist) . . (+610)‎ . . N 2014 UNCO Math Contest II Problems/Problem 7 ‎ (Created page with "== Problem == The Caterpillar owns five different matched pairs of socks. He keeps the ten socks jumbled in random order inside a silk sack. Dressing in the dark, he selects soc...")
• 14:46, 19 October 2014 (diff | hist) . . (+1,067)‎ . . N 2014 UNCO Math Contest II Problems/Problem 6 ‎ (Created page with "== Problem == (a) Alice falls down a rabbit hole and finds herself in a circular room with five doors of five different sizes evenly spaced around the circumference. Alice tries...")
• 14:46, 19 October 2014 (diff | hist) . . (+759)‎ . . N 2014 UNCO Math Contest II Problems/Problem 5 ‎ (Created page with "== Problem == (a) The White Rabbit has a square garden with sides of length one meter. He builds a square cucumber frame in the center by connecting each corner of the garden t...")
• 14:45, 19 October 2014 (diff | hist) . . (0)‎ . . m 2014 UNCO Math Contest II Problems/Problem 4 ‎
• 14:45, 19 October 2014 (diff | hist) . . (+673)‎ . . N 2014 UNCO Math Contest II Problems/Problem 4 ‎ (Created page with "== Problem == On the first slate, the Queen’s jurors write the number <math>1</math>. On the second slate they write the numbers <math>2</math> and <math>3</math>. On the thir...")
• 14:44, 19 October 2014 (diff | hist) . . (+295)‎ . . N 2014 UNCO Math Contest II Problems/Problem 3 ‎ (Created page with "== Problem == Find <math>x</math> and <math>y</math> if <math>\frac{1}{1+\frac{1}{x}}=2</math> and <math>\frac{1}{1+\frac{1}{1+\frac{1}{1+\frac{1}{y}}}}=2</math> == Solution =...")
• 14:43, 19 October 2014 (diff | hist) . . (+476)‎ . . N 2014 UNCO Math Contest II Problems/Problem 2 ‎ (Created page with "== Problem == Define the Cheshire Cat function <math>\fbox{:)}</math> by <cmath>\begin{align*} \fbox{:)}(x) &= -x \quad \text {if } x \text{ is even and} \\ \fbox{:)}(x) &= x ...")
• 14:42, 19 October 2014 (diff | hist) . . (+436)‎ . . m 2014 UNCO Math Contest II Problems/Problem 1 ‎
• 01:33, 19 October 2014 (diff | hist) . . (+2)‎ . . m 2010 UNCO Math Contest II Problems ‎ (→‎Problem 6)
• 01:25, 19 October 2014 (diff | hist) . . (-6)‎ . . m 2010 UNCO Math Contest II Problems ‎
• 01:15, 19 October 2014 (diff | hist) . . (+19)‎ . . m 2010 UNCO Math Contest II Problems ‎
• 01:06, 19 October 2014 (diff | hist) . . (+5,166)‎ . . N 2010 UNCO Math Contest II Problems ‎ (Created page with "University of Northern Colorado MATHEMATICS CONTEST FINAL ROUND January 30, 2010 For Colorado Students Grades 7-12 • The ten digits are <math>0, 1, 2, 3, 4, 5, 6, 7, 8, 9.</ma...")
• 01:03, 19 October 2014 (diff | hist) . . (+1,165)‎ . . N 2010 UNCO Math Contest II ‎ (Created page with "'''2010 UNC Math Contest''' problems and solutions. The test was held on January 30, 2010. The first link contains the full set...")
• 03:06, 18 October 2014 (diff | hist) . . (+24)‎ . . m 2011 UNCO Math Contest II Problems ‎
• 02:54, 18 October 2014 (diff | hist) . . (+5,306)‎ . . N 2011 UNCO Math Contest II Problems ‎ (Created page with "University of Northern Colorado MATHEMATICS CONTEST FINAL ROUND January 29, 2011 For Colorado Students Grades 7-12 • <math>n!</math>, read as n factorial, is computed as <math...")
• 02:54, 18 October 2014 (diff | hist) . . (+1,165)‎ . . N 2011 UNCO Math Contest II ‎ (Created page with "'''2011 UNC Math Contest''' problems and solutions. The test was held on January 29, 2011. The first link contains the full set...")
• 02:28, 17 October 2014 (diff | hist) . . (+14)‎ . . m 2012 AMC 10A Problems/Problem 15 ‎ (→‎Solution 4)
• 02:24, 17 October 2014 (diff | hist) . . (+523)‎ . . N 2012 UNCO Math Contest II Problems/Problem 11 ‎ (Created page with "== Problem == Construct a <math>4</math>th degree polynomial <math>x^4+ax^3+bx^2+cx+d</math> that meets as many of the following conditions as you can: the sum of the roots is ...")
• 02:23, 17 October 2014 (diff | hist) . . (+1,329)‎ . . N 2012 UNCO Math Contest II Problems/Problem 10 ‎ (Created page with "== Problem == An integer equiangular hexagon is a six-sided polygon whose side lengths are all integers and whose internal angles all measure <math>120^{\circ}</math>. (a) How ...")
• 02:22, 17 October 2014 (diff | hist) . . (+1,147)‎ . . N 2012 UNCO Math Contest II Problems/Problem 9 ‎ (Created page with "== Problem == Treasure Chest . You have a long row of boxes. The 1st box contains no coin. The next <math>2</math> boxes each contain <math>1</math> coin. The next <math>4</math...")
• 02:22, 17 October 2014 (diff | hist) . . (+528)‎ . . N 2012 UNCO Math Contest II Problems/Problem 8 ‎ (Created page with "== Problem == An ordinary fair die is tossed repeatedly until the face with six dots appears on top. On average, what is the sum of the numbers that appear on top before the six...")
• 02:21, 17 October 2014 (diff | hist) . . (+551)‎ . . N 2012 UNCO Math Contest II Problems/Problem 7 ‎ (Created page with "== Problem == A circle of radius <math>1</math> is externally tangent to a circle of radius <math>3</math> and both circles are tangent to a line. Find the area of the shaded r...")
• 02:21, 17 October 2014 (diff | hist) . . (+274)‎ . . N 2012 UNCO Math Contest II Problems/Problem 6 ‎ (Created page with "== Problem == How many <math>5</math>-digit positive integers have the property that the product of their digits is <math>600</math>? == Solution == == See Also == {{UNC Mat...")
• 02:20, 17 October 2014 (diff | hist) . . (+235)‎ . . N 2012 UNCO Math Contest II Problems/Problem 5 ‎ (Created page with "== Problem == What is the remainder when <math>12^{2011}+11^{2012}</math> is divided by seven? == Solution == == See Also == {{UNC Math Contest box|n=II|year=2012|num-b=4|nu...")
• 02:20, 17 October 2014 (diff | hist) . . (+386)‎ . . N 2012 UNCO Math Contest II Problems/Problem 4 ‎ (Created page with "== Problem == a) What is the largest integer <math>n</math> for which <math>n^3+1631</math> is divisible by <math>n+11</math> ? (b) For how many positive integer values of <mat...")
• 02:19, 17 October 2014 (diff | hist) . . (+1,177)‎ . . N 2012 UNCO Math Contest II Problems/Problem 3 ‎ (Created page with "== Problem == Mrs. Olson begins a journey at the intersection of Avenue <math>A</math> and First Street in the upper left on the attached map. She ends her journey at one of th...")
• 02:18, 17 October 2014 (diff | hist) . . (+278)‎ . . N 2012 UNCO Math Contest II Problems/Problem 2 ‎ (Created page with "== Problem == Four ordinary, six-sided, fair dice are tossed. What is the probability that the sum of the numbers on top is <math>5</math>? == Solution == == See Also == {{U...")
• 02:17, 17 October 2014 (diff | hist) . . (+440)‎ . . N 2012 UNCO Math Contest II Problems/Problem 1 ‎ (Created page with "== Problem == (a) What is the largest factor of <math>180</math> that is not a multiple of <math>15</math>? (b) If <math>N</math> satisfies <math>2^5 \times 3^2 \times5^4 \time...")
• 01:56, 17 October 2014 (diff | hist) . . (+260)‎ . . m 2012 UNCO Math Contest II Problems ‎ (→‎Problem 10)
• 01:45, 17 October 2014 (diff | hist) . . (+338)‎ . . m 2012 UNCO Math Contest II Problems ‎ (→‎Problem 10)
• 01:28, 17 October 2014 (diff | hist) . . (+32)‎ . . 2012 UNCO Math Contest II Problems ‎ (→‎Problem 11)
• 01:26, 17 October 2014 (diff | hist) . . (+91)‎ . . m 2012 UNCO Math Contest II Problems ‎ (→‎Problem 9)
• 01:24, 17 October 2014 (diff | hist) . . (+23)‎ . . m 2012 UNCO Math Contest II Problems ‎ (→‎Problem 8)
• 01:23, 17 October 2014 (diff | hist) . . (+186)‎ . . m 2012 UNCO Math Contest II Problems ‎ (→‎Problem 7)
• 01:05, 17 October 2014 (diff | hist) . . (+33)‎ . . m 2012 UNCO Math Contest II Problems ‎ (→‎Problem 5)
• 01:04, 17 October 2014 (diff | hist) . . (+481)‎ . . m 2012 UNCO Math Contest II Problems ‎
• 00:06, 17 October 2014 (diff | hist) . . (+5,002)‎ . . N 2012 UNCO Math Contest II Problems ‎ (Created page with "Twentieth Annual UNC Math Contest Final Round January 21, 2012. Three hours; no electronic devices. Show your work for each problem. Your score will be based on your answers and...")
• 23:55, 16 October 2014 (diff | hist) . . (+1,039)‎ . . N 2012 UNCO Math Contest II ‎ (Created page with "'''2012 UNC Math Contest''' problems and solutions. The test was held on January 21, 2012. The first link contains the full set...")

(newest | oldest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)