Solve the problem.The algebraic expression 
describes the duration of a storm, in hours, whose diameter is d miles. Use a calculator to determine the duration of a storm with a diameter of 15 miles. Round to the nearest hundredth.
A. 0.27 hr
B. 4.07 hr
C. 1.08 hr
D. 58.09 hr
Answer: B
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Solve the problem.The accompanying tables represent a function f that converts seconds to hours and a function g that converts hours to days.
Express (f -1?g -1)(x) symbolically.
A. (f -1?g -1)(x) = 86,400x
B. (f -1?g -1)(x) = 
C. (f -1?g -1)(x) = 
D. (f -1?g -1)(x) = 86,400x2
Find all of the real and imaginary zeros for the polynomial function.f(x) = x3 - 6x2 + x - 6
A. -1, 1, 6 B. 6, -i, i C. -6, 6, i D. -6, -i, i
Give the degree of the polynomial (when simplified), and tell whether it is a monomial, a binomial, a trinomial, or none of these.10z5 + 3z4 - z3 + 12
A. Degree 5; none of these B. Degree 5; trinomial C. Degree 13; binomial D. Degree 12; trinomial
Solve the initial value problem.x' = Ax, x(0) = 
, where A = 
A. x(t) = 
e-2t
B. x(t) = 
e2t
C. x(t) = 
e-2t
D. x(t) = 
e2t