Write the product as a sum or difference of trigonometric functions.2 cos 8x cos 2x
A. cos 6x - cos 10x
B. 
(cos 10x + cos 6x)
C. cos 10x + cos 6x
D. sin 10x + sin 6x
Answer: C
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Find the zeros of the polynomial function and state the multiplicity of each.f(x) = 3(x + 6)2(x - 6)3
A. 4, multiplicity 1; 6, multiplicity 1; -6, multiplicity 1 B. 4, multiplicity 1; -6, multiplicity 3; 6, multiplicity 3 C. -6, multiplicity 3; 6, multiplicity 2 D. -6, multiplicity 2; 6, multiplicity 3
Solve the problem.Suppose a life insurance policy costs $28 for the first unit of coverage and then $7 for each additional unit of coverage. Let C(x) be the cost for insurance of x units of coverage. What will 10 units of coverage cost?
A. $98 B. $70 C. $42 D. $91
Provide an appropriate response.The number of loaves of whole wheat bread left on the shelf of a local quick stop at closing (denoted by the random variable X) varies from day to day. Past records show that the probability distribution of X is as shown in the following table. Find the probability that there will be at least three loaves left over at the end of any given day. 
A. 0.20 B. 0.65 C. 0.35 D. 0.15
Multiply.(7i)(-10i)
A. -17 B. -70 C. 17 D. 70