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ample of 400 g of radioactive lead 210 decays to polonium 210 according to the function A t 400e 0 032t where t is time

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ample of 400 g of radioactive lead 210 decays to polonium 210 according to the function A t 400e 0 032t where t is time in years Find the amount of radioactive lead remaining af 4 yr b 8 yr c 10 yr d Find the half life The amount of radioactive lead remaining after 4 yr will be und to the nearest integer as needed g

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