Solve.The population growth of an animal species is described by F(t) = 600 + 70 log3(2t + 1) where t is measured in months. Find the population of this species in an area 40 month(s) after the species is introduced.
A. 6270
B. 3155
C. 450
D. 880
Answer: D
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Solve the problem. Assume all numbers are approximate unless otherwise stated or the number has been determined by a definition or counting process.At some point in the decimal equivalent of a rational number, some sequence of digits will start repeating endlessly. An irrational number never has an endlessly repeating sequence of digits. If the fraction 
is a rational number, which decimal equivalent digits indicate this?
A. 15 B. 13 C. 3 D. The fraction is irrational.
Graph the cycloid for t in the indicated interval.x = 6t - 6 sin t, y= 6 - 6 cos t, -2? ? t ? 2?
A. 
B. 
C. 
D. 
Multiply or divide as indicated. Make sure that your answer is reasonable by estimating first. 48.9 ÷ 5
A. 0.978 B. 9.78 C. 0.102 D. 97.8
Solve the problem.If the probability of rain for the day is 65%, what are the odds against rain?
A. 7 to 13 B. 13 to 7 C. 13 to 20 D. 7 to 20