Mathematics, 21.07.2019 21:00 aron4327

One hundred grams of radium are stored in a container. the amount r of radium present after t years can modeled by r=10e^-0.00043t. after how many years will only 5 grams of radium be present? round your answer to the nearest whole year.

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One hundred grams of radium are stored in a container. the amount r of radium present after t years...

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