If the sum of the interior angles of a polygon is 540, then how many sides does the polygon have? a. 5 b. 6 c. 7 d. 8

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

What is the distance between point a and b