Solve the problem.Brand X copier has improved its copier so that it produces 10% more copies than its old model. If the old model ran 314 copies per hour, how many copies would the new model run?
A. 329 copies
B. 345 copies
C. 330 copies
D. 165 copies
Answer: B
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Solve the given differential equation. (The form of yp is given.)36D2y - y = sin x (Let yp = A sin x + B cos x.)
A. y = c1ex/6 + c2e-x/6 - 
sin x + 
cos x
B. y = c1ex/6 + c2e-x/6 - 
sin x
C. y = c1ex/6 + c2e-x/6 + 
sin x
D. y = c1ex/6 + c2e-x/6 - 
cos x
Find the indicated composition.f(x) = 
; g(x) = 
Find (f ? g)(x).
A. (f ? g)(x) = 
B. (f ? g)(x) = 
C. (f ? g)(x) = 
D. (f ? g)(x) = 
Simplify the algebraic expression.-4(2x - 9) - 4x + 6
A. -12x - 30 B. 4x + 42 C. 12x + 42 D. -12x + 42
Solve the problem.The function f(x) = 60x computes the number of minutes in x hours. The function g(x) = 24x computes the number of hours in x days. What is (f ? g)(x) and what does it compute?
A. (f ? g)(x) = 84x; It computes the number of minutes plus the number of days in x days. B. (f ? g)(x) = 1440x; It computes the number of days in x minutes. C. (f ? g)(x) = 1440x; It computes the number of minutes in x days. D. (f ? g)(x) = 1440x2; It computes the number of minutes in x days.