Solve the problem.dy/dt = ky + f(t) is a population model where y is the population at time t and f(t) is some function to describe the net effect on the population. Assume k = 0.02 and 
when t = 0. Solve the differential equation of y when f(t) = -18t.
A. y = -900t + 45,000 - 35,000e-0.02t
B. y = 900t + 45,000 - 35,000e0.02t
C. y = -900t - 45,000 - 35,000e0.02t
D. y = 900t + 45,000 - 35,000e-0.02t
Answer: B
Mathematics
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= 
A. 
B. 
C. 
D. 
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Find the sum, if it exists, of the terms of the infinite geometric sequence.
A. 
B. 
C. 
D. Does not exist
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Factor the polynomial completely using the grouping method.12y2 + 54y - 30
A. (12y - 6)(y + 5) B. prime C. 6(2y - 1)(y + 5) D. 6(2y + 1)(y - 5)
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Find the indicated sum.
A. 110 B. 35 C. 75 D. 55
Mathematics