Find v ? u.v = 8i - 2j and u = -4i + 5j
A. -32i - 10j
B. -22
C. -42
D. 4i + 3j
Answer: C
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Solve the problem.The distance traveled by a falling object is given by d = 16t2, where d is the distance (in feet) the object falls in t seconds. How long would it take an object to fall freely from a bridge 
above the water? Round your answer to the nearest tenth of a second.
A. 6.9 sec B. 48.1 sec C. 9,486,400.0 sec D. 111.0 sec
Find an equivalent equation in rectangular coordinates.r = 2(sin ? - cos ?)
A. 2x2 + 2y2 = y - x B. 2x2 + 2y2 = x - y C. x2 + y2 = 2x - 2y D. x2 + y2 = 2y - 2x
Find the slope of the line containing the given pair of points. If a slope is undefined, state that fact.(x, -3x + 4) and (x + h, -3(x + h) + 4)
A. -3 B. 4 C. 0 D. 3
Multiply and simplify.15 ? 
A. 
B. 
C. 16
D. 12