Provide an appropriate response.
-The current population of a threatened animal species is 1 million, but it is declining with a half-life of 27 years. How many animals will be left in 74 years?
A)149,608 animals
B)150 animals
C)74,804 animals
D)748 animals

Question

Quizplus · Accepted Answer

To find the remaining population after 74 years, we use the half-life formula. With a half-life of 27 years, after 74 years (approximately 2.74 half-lives), the population would be $1,000,000 \times (1/2)^{2.74}$, which is approximately 149,608 animals.

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