Question

A biologist has an 8892-gram sample of a radioactive substance. Find the mass of the sample after three hours if it decreases according to a continuous

exponential decay model, at a relative rate of 18% per hour.
Do not round any intermediate computations, and round your answer to the nearest tenth.

Answer 1

Answer: 4902.8

Explanation: take 8892 subtract 18% from it then do that again with the number you got from subtracting 18% from 8892 and so on and so fourth just do it one more time and you get 4902.76 which now you round it to the nearest tenth and that equals 4902.8.