Find functions f and g so that h(x) = (f ? g)(x).h(x) = 
A. f(x) = 1/x2, g(x) = x - 8
B. f(x) = 1/8, g(x) = x2 - 8
C. f(x) = 1/x2, g(x) = - 1/8
D. f(x) = 1/x, g(x) = x2 - 8
Answer: D
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Use the method of undetermined coefficients to solve the differential equation.y'' - 6y' + 13y = 2e-4x
A. y = e3x(C1 cos 2x + C2 sin 2x) + 
e-4x
B. y = C1e3x + C2e2x + 
e-4x
C. y = e3x(C1 cos 2x + C2 sin 2x) + 
e-4x
D. y = C1 cos 3x + C2 sin 2x + 
e-4x
Simplify the expression.
A. 
B. 
C. 
D. 
Answer the question(s) based on the following situation: Over the last 80 years records have been kept of the annual rainfall in the Tasmanian desert. The distribution of annual rainfall is approximately normal and has no outliers. The minimum of 4.5 inches of rain occurred in 1952; the maximum of 11.7 inches of rain occurred in 1934.In this part of the world, anything over 10.5 inches of annual rainfall is considered a "wet" year. Of the last 80 years, approximately how many were "wet" ones?
A. 4 B. 16 C. 6 D. 2 E. none of these
Solve.Let f(x) = -6x + 6 and g(x) = 6x2 + 8. Find g(8) - f(8) .
A. 426 B. 440 C. 432 D. 434