Complete the equation so the result is an identity. sin x = (
)(cos x)
A. cot x
B. csc x
C. sec x
D. tan x
Answer: D
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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
Find the perimeter. Use 3.14 for ?.
A. 55.7 in. B. 71.4 in. C. 45.7 in. D. 61.4 in.
Solve the problem.You have money in an account at 6% interest, compounded weekly. To the nearest year, how long will it take for your money to double?
A. 16 years B. 12 years C. 7 years D. 9 years
Find the distance d(A, B) between the points A and B.A = (0, 1); B = (-7, 1)
A. 1
B. 7
C. 5
D. 49