Mathematics, 11.05.2021 06:40, adelheidclees

If 12 g of a radioactive substance are present initially and 4 yr later only 6 g remain, how much of the substance will be present after 6 yr? After 6 yr there will beg of a radioactive substance.
(Round the final answer to three decimal places as needed. Round all intermediate values to seven decimal places as needed.)

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If 12 g of a radioactive substance are present initially and 4 yr later only 6 g remain, how much of...