In 1980, the population of blue whales in the southern hemisphere was thought to number 5,000. The population N(t) has been decreasing according to the formula
where t is in years and t = 0 corresponds to 1980. Predict the population in the year 2015 if this trend continues.
A) 
B) 
C) 
D) 
E) 
Correct Answer:
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