A Difficult Applied Math Question
Question One end of a piece of elastic is attached to a point at the top of a…
Question One end of a piece of elastic is attached to a point at the top of a…
Question Mr. Blue, Mr. Black, Mr. Green, Mrs. White, Mrs. Yellow and Mrs. Red sit around a circular…
Answer We will use the Sine Rule. In triangle ABD, AD / sin(ABD) = BD / sin(BAD) So…
Answer The trick is to realize that the product of four consecutive integers is always less than 1…
Question What must be added to each of the following expressions to obtain a perfect square? [Q1] a^2…
Answer You are essentially getting the number X which is of the form below : X = 2^a…
Question Solve for x. (x-2)^2 = (√x) + 2 Answer (x-2)^2 = (√x) + 2 x^2 – 4x…
Answer Here is a short way. Fermat’s little theorem says that if p is a prime and b…
Question Factor each expression. a^2(b-c)-16b^2(b-c) Answer a^2(b-c)-16b^2(b-c) = (b -c) [ a^2-16b^2 ] =(b -c) [ a^2-(4b)^2…
Question John saved $600 and Carla saved $550 into a savings account. John found an account that would…