Select the correct answer. Which expression completes the identity sinusinv =?
A. [ sin(u + v) + sin(x – v]
B. [ sin(w + v) – sin(x – v]
C. [ costu – u) – cos(u + v] thing
D. [C03(2 + v) + costu – v]
E. [ costre – vi + cos(u + v)]

For the function, f(x) = -5x 2, find f(-4).

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?