What is 66 2/3% of 39? what steps do i take to get my answer. and 66 2/3 is a mixed number fraction.

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.

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?

Asinusoidal function whose frequency is 1/6pi