If the sequence is geometric, find the common ratio. If the sequence is not geometric, say so.
, 
, 
, 
, 
A. 4
B. 
C. 40
D. 
Answer: B
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Find the simplest form of a second-order homogeneous linear differential equation that has the given solution.y = c1e-5x + c2xe-5x
A. D2y - 10Dy + 25y = 0 B. D2y + 10Dy + 25y = 0 C. D2y + 10Dy - 25y = 0 D. D2y + 5Dy + 25y = 0
An efficiency study conducted for a company showed that the number of devices assembled by the average worker t hr after starting work at 7 A.M. is given by
?
?
At what time during the morning shift is the average worker performing at peak efficiency?
?
At __________ A. M.
Fill in the blank(s) with the appropriate word(s).
Find the equilibrium vector for the transition matrix.
Round the numbers in your answer to the nearest hundredth.
A. 
B. 
C. 
D. 
Use identities to simplify the expression.
A. -cos x B. cos x C. sin x D. -sin x