Define x @ y as (x3 − y)/x, for distinct positive integers x and y. What is the value of 5 @ 10? Evaluating 5 @ 10 yields (53 − 10)/5 = (125 − 10)/5 = 115/5 = 23. Define a # b as a2 − b2 − ab, for...
Final exams often accompany the final days of school. Sherry has had four tests so far in her science class, each worth 1/6 of her final grade. She scored 87%, 89%, 92% and 91% on these tests. Her...
Original Handbook Problem: Vacations R-Us charges $130 a day plus a one-time, nonrefundable $50 cleaning fee to rent a house at the beach. How much will it cost the Sanchez family to rent the house...
Semi-Finalist Video in the 2011-2012 Math Video Challenge. This video was created by The Eagles. The Math Video Challenge is an innovative program involving teams of students using cutting-edge...
Finalist Video in the 2011-2012 Math Video Challenge. This video was created by team Mary Help of Christians. The Math Video Challenge is an innovative program involving teams of students using...
Mathletes will become familiar with properties of 45-45-90 and 30-60-90 triangles. In this plan, the relationships between the sides of these two special right triangles will be derived. Then...