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Mathematics, 12.02.2021 22:30 madisontrosclair2

The amount of a certain radioactive substance decays exponentially with time. If the amount decreases by 64% every year, then find the equivalent semi-annual rate?
A. 32%
B. 40%
C. 20%
D. 8%

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The amount of a certain radioactive substance decays exponentially with time. If the amount decrease...
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