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A sample of 250 grams of radioactive substance decays according to the function A(t)=250e-0.45t, where t is time in Yrs how much in 20 yrs?

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  • A sample of 250 grams of radioactive substance decays according to the function A(t)=250e-0.45t, where t is time in Yrs how much in 20 yrs?


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