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Mathematics, 23.03.2021 20:00 21stcenturycyber

There was a sample of 500 milligrams of a radioactive substance to start a study. Since then, the sample has decayed by 5.4% each year . Let t be the number of years since the start of the study. let y be the mass of the sample in milligrams write an exponential function showing relation between y and t

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