Use the fact that the quantity of a radioactive substance after t years is given by , where is the original amount of radioactive material and k is its half-life (the number of years it takes for half the radioactive substance to decay). The half-life of carbon-14 is 5,600 years. Find the amount of carbon-14 remaining after 8,000 years if

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?

A. 24.9307 g
B. 65.7924 g
C. 0.0019 g
D. 15.0457 g
E. 20.25 g

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Answer: D

Mathematics