Give the following ratios from the diagram below. Sin(D), Cos(D), Tan(D), Sin(F), Cos(F), and Tan(F).

Ten times the square of a non-zero number is eqaul to ninety times the number

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Sum of the interior angles of a pentagon