Perform the operations indicated.(3x - 8) + (2x + 9)
A. 6x2 - 72
B. 5x + 1
C. 5x2 + 1
D. 5x - 1
Answer: B
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Use a computer algebra system (CAS) to solve the given initial value problem.y' = 2x2 sin x, y(0) = 2
A. y = -2x sin x cos x + 2 sin2 x + 2x2 + 2 B. y = -2 cos x2 + 4 C. y = -2x cos x + 2 sin x + 2 D. y = -2(x2 - 2) cos x + 4x sin x - 2
Factor out the GCF from the polynomial.48p + 12q - 12
A. 12p(4 + q - 1) B. 12(4p + q - 1) C. 12(4p + q) D. no common factors
Express the product as a sum containing only sines or cosines.sin(9?) sin(5?)
A. sin2(45?2)
B. 
[ cos(4?) - cos(14?)]
C. 
[cos(14?) - cos(4?)]
D. 
[sin(14?) + cos(4?)]
Solve the problem by estimating.Enrollment figures at a community college showed an increase from 23,667 credit hours in 2005 to 76,265 credit hours in 2006. Round each number to the nearest thousand to estimate the increase.
A. 53,000 credit hours B. 52,000 credit hours C. 52,600 credit hours D. 52,700 credit hours