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. How long will it take for the population of a certain country to double if its annual growth rate is 0.5%? Round to the nearest year.

A. 400 yr
B. 1 yr
C. 139 yr
D. 60 yr

Answer: C

Mathematics

Solve the system.

A. (0, -5, 5) B. (0, -5, 0) C. (0, 0, -5) D. no solution

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Mathematics

Express as a sum, difference, and product of logarithms, without using exponents.logb

A. log_b x + log_b y - 4log_b z
B. log_b x - log_b x + 4log_b z
C. log_b x3 + log_b y7 - log_b z⁸
D. log_b x + 7log_b y - 8log_bz

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Mathematics

Find the value of the logarithmic function.log4

A. -1 B. 4 C. 0 D. 1

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Mathematics

Solve the system by graphing.x - y = 4x + y = 4

A. (0, - 4) B. (- 4, 0) C. (0, 4) D. (4, 0)

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Mathematics