by John Ehrke | Sep 14, 2018 | Problem of the Week
The Probability Both Roots are Positive and Real This problem is from Gary Gordon, Lafayette College Let f(x) = x2 + bx + c where b and c are real numbers between -1 and 1. What is the probability that both roots of f(x) are positive real numbers? Submit your answers...
by John Ehrke | Sep 8, 2018 | Problem of the Week
What Were the Correct Answers? This problem is from Tamar Malinek, by way of Marilyn vos Savant, Sunday Parade Magazine (Abilene Reporter News.) Mrs. Smith, a teacher, gave five students a make-up science test. There were five questions on the test. However after...
by John Ehrke | Aug 28, 2018 | Problem of the Week
Background The POTW competition has existed in form or another since September 3, 1990, when the first problem was given by Dr. Bo Green, professor emeritus of the Department of Mathematics until his retirement in 2009. The competition was excitedly restarted in Fall...
by John Ehrke | Mar 26, 2018 | Problem of the Week
ACU Mathematics Problem of the Week Problem 6 – Monday, March 26th The Problem of the Week competition, sponsored by Mu Sigma, is now live. This week’s problem can be found below or slips of paper with the problem description can be found on the main...
by John Ehrke | Feb 20, 2018 | Problem of the Week
ACU Mathematics Problem of the Week Problem 5 – February 20th, 2018 The Problem of the Week competition, sponsored by Mu Sigma, is now live. This week’s problem can be found below or slips of paper with the problem description can be found on the main...
