What's the area of a sector of a circle that has a diameter of 10 in. if the length of the arc is 10 in.? a. 50 sq in. b. 25 sq in. c. 100 sq in. d. 75 sq in. i think it's a but correct me if i'm wrong

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

The only way to identify an intercept is as an ordered pair. true false

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.