Use identities to find values of the sine and cosine functions of the function for the angle measurea. theta, given that cos2theta=28/53 and 0theta < theta < 90degreesb. 2theta, given sin theta= - sqrt 7 over 5 and cos theta > 0c. 2x, given tan x=2 and cos x<0

With: label the vertices and all the elements needed. find x

What point is the projection of q on a) r b) s c) t

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer