Solve the problem.In the formula N = Iekt, N is the number of items in terms of an initial population I at a given time t and k is a growth constant equal to the percent of growth per unit time. There are currently 72 million cars in a certain country, decreasing by 3.4% annually. How many years will it take for this country to have 47 million cars? Round to the nearest year.
A. 3 yr
B. 95 yr
C. 7 yr
D. 13 yr
Answer: D
You might also like to view...
Solve the problem.An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve 
- 3 ? x ? 3, about the x-axis (dimensions are in feet). If a cubic foot holds 7.481 gallons and the helicopter gets 3 miles to the gallon, how many additional miles will the helicopter be able to fly once the tank is installed (to the nearest mile)?
A. 56 B. 113 C. 75 D. 226
Answer the question. You will need to use the formula 4.9t2 + vot = s.Approximately how far will an object fall in 5 seconds, if it is thrown downward at an initial velocity of 10 meters per second from a helicopter?
A. 175.8 meters B. 167.6 meters C. 178.2 meters D. 172.5 meters
Match the given equation with one of the graphs.
- 
= 1
A. 
B. 
C. 
D. 
Find the equation in slope-intercept form of the line satisfying the conditions.Slope -1; y-intercept (0, 8)
A. -x + y = 8 B. y = -x + 8 C. y = 8x - 1 D. y = 8x