Rewrite with only sin x and cos x. Show steps cos 2x + sin x

A.) 1 + 3 sin x
B.) 1 + 3 sin2x
C.) 1 - 2 sin2x + sin x
D.) 1 + 2 sin2x + sin x

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red

Given right triangle a w/a hypotenuse length of x+4 and a leg of x, and right triangle b, w/ a hypotense length of 3y and a leg length of y+4 for what values of x and y are the triangles congruent by hl?