Find the product.(5x2 - 10y)(-3x2 + 2y + z)
A. -15x4 + 40x2y - 20y4 + 5x2yz
B. -15x4 + 40x2y2 - 20y2
C. -15x2 + 40xy + 5x2z - 20y2 - 10z
D. -15x4 + 40x2y + 5x2z - 20y2 - 10yz
Answer: D
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Write as logarithmic equations.85/3 = 32
A. log8 32 = 
B. 
= 8
C. log32 8 = 
D. log5 8 = 
Determine the amplitude and range of the function and sketch its graph.y = 5 cos x
A. amplitude: 5; range: [0, 5]
B. amplitude: 5; range: [0, 5]
C. amplitude: 5; range: [-5, 5]
D. amplitude: 5; range: [-5, 5]
Solve the problem.If an object is dropped from a tower, then the velocity, V (in feet per second), of the object after t seconds can be obtained by multiplying t by 32 and adding 10 to the result. Find V as a linear function of t, and use this function to evaluate V(4.4), the velocity of the object at time 
A. V(4.4) = 148.8 feet per second B. V(4.4) = 150.1 feet per second C. V(4.4) = 150.8 feet per second D. V(4.4) = 152.1 feet per second
Find the indicated term of the binomial expansion.9th term; (x - 2y)11
A. 42,240x8y3 B. -21,120x3y9 C. -21,120x8y3 D. 42,240x3y8