Solve the problem.Use the formula N = Iekt, where N is the number of items in terms of the initial population I, at time t, and k is the growth constant equal to the percent of growth per unit of time. There are currently 61 million cars in a certain country, decreasing by 4% annually. How many years will it take for this country to have 50 million cars? Round to the nearest year.
A. 60 years
B. 5 years
C. 11 years
D. 3 years
Answer: B
Mathematics
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Determine whether the improper integral converges or diverges.
A. Diverges B. Converges
Mathematics
Find the exact value by using a sum or difference identity.cos 285°
A. - 
(
+ 1)
B. - 
(
- 1)
C. - 
D. 
Mathematics
Write an equation for the line passing through the given pair of points. Give your final answer in standard form.(-9, -6) and (-18, 2)
A. 8x - 9y = -126 B. 8x + y = 126 C. -8x + 9y = -78 D. 8x + 9y = -126
Mathematics
Solve.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Refer to the figure and determine the height, h, of the outside walls.A = 6 m
A. 2.9 m B. 69 m C. 8.6 m D. 8.3 m
Mathematics