See the attached file for questioins

            INSTRUCTIONS

(1) Suppose  and

Find  and verify your answer.

(2) Solve the following equation in the interval

(3) Three gears are arranged as shown below. Find the angle .

(4)An eagle flies from its nest  in the direction northeast, where it stops to rest on a cliff.  It then flies  in the direction south west to land on top of a tree. Place an coordinate system so that the origin is the bird's nest, the axis points east, and the axis points north. At what point is the tree located?

(5) A parallelogram has side lengths 15.4  and 9.8 . Its area is 72.9 . Find the measure of the largest angle.