Mathematics, 21.05.2021 02:50 anikabarnhart

Promethium has a half-life of 18 years. The equation A=200(12)1t can be used to find the amount, A, of promethium left after t years. Initially, there are 200 milligrams. Over the first 18 years, what is the average amount of promethium lost per year? Round your answer to the hundredths place.

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Promethium has a half-life of 18 years. The equation A=200(12)1t can be used to find the amount, A,...

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