Would sinA 15/17 be corrrect?

What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge

Consider this expression and the steps to evaluate it. 4^5(−2)^9/4^8(−2)^3 1. apply the quotient of powers:      (−2)^a/4^b 2. evaluate powers:           c/d select the value of each variable. a = _ b = _ c = _ d = _