Question
Asked May 4, 2019
34)The amount A of radium in milligrams remaining in a sample after t years is given by
4)0.2160
How many years will it take for the radium to decay to 0.004 milligram?
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34)The amount A of radium in milligrams remaining in a sample after t years is given by 4)0.2160 How many years will it take for the radium to decay to 0.004 milligram?

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Here, we substitute the value of A(t)=0.004  and solve the e...

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