Solve the problem.The population of a particular country was 21 million in 1984; in 1999, it was 31 million. The exponential growth function 
describes the population of this country t years after 1984. Use the fact that 15 years after 1984 the population increased by 10 million to find k to three decimal places.
A. 0.036
B. 0.154
C. 0.026
D. 0.432
Answer: C
Mathematics
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Identify the fraction as a proper fraction, an improper fraction, or a mixed number.8
A. Improper fraction B. Proper fraction C. Mixed number
Mathematics
Solve the problem.Find the length of the unknown side of the right triangle, where a and b are the legs and c is the hypotenuse. a = 6, b = 8, c = ?
A. c = 10 B. c = 7 C. c = 9 D. c = 5
Mathematics
Determine if the series converges or diverges; if the series converges, find its sum.
A. Converges; 1
B. Converges; ln 
C. Converges; ln 2
D. Diverges
Mathematics
Find the center and radius of the circle.(x - 1)2 + y2 = 64
A. Center: (0, -1); radius: 64 B. Center: (-1, 0); radius: 64 C. Center: (0, 1); radius: 8 D. Center: (1, 0); radius: 8
Mathematics