Solve the problem.The population of a particular country was 28 million in 1980; in 1988, it was 40 million. The exponential growth function 
describes the population of this country t years after 1980. Use the fact that 8 years after 1980 the population increased by 12 million. Find k rounded to three decimal places.
A. 0.045
B. 0.878
C. 0.311
D. 0.055
Answer: A
Mathematics
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Factor completely. If unfactorable, indicate that the polynomial is prime.x4 + 6x3 + 125x + 750
A. (x + 6)(x - 5)(x2 + 5x + 25) B. (x + 6)(x + 5)(x2 - 5x + 25) C. prime D. (x + 6)(x3 + 125)
Mathematics
Use synthetic division to decide whether the given number is a solution of the given equation.x4 - 3x2 - 4; x = -2
A. Yes B. No
Mathematics
Solve the problem.The graphs below represent the supply and demand for a product at various prices per unit. At what price does supply equal demand?
A. $400 B. $650 C. $177 D. $900
Mathematics
Solve the equation.x2 - 64 = 63x
A. x = 1, -64 B. x = -8, -8 C. x = -8, 8 D. x = -1, 64
Mathematics