Please help!!
y=
a.) 4.6
b.) 13.9
c.) 21.6

Find the solutions for a triangle with a =16, c =12, and b = 63º

Draw a scaled copy of the circle using a scale factor of 2

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.