Find the area of the shaded regions. Give your answer as a completely simplified exact value in terms of π (no approximations)

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.