Suppose you want to approximate Z b a Z d c f(x, y)dydx by rectangles sampled from either upper-left, upper-right, lower-left, or lower-right corners. If you are told that fx(x, y) < 0 at all points (x, y), what does that tell you about which approximations are larger than which

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°

if you was gonna solve for a, a is a   < -12