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Mathematics, 02.05.2021 02:10 lilpetals

In 1999, a sample of a radioactive substance had a mass of 800 milligrams. Since then, the sample has decayed by 2.2% each year. Let t be the number of years since 1999. Let y be the mass of the substance in milligrams.
Write an exponential function showing the relationship between y and t.

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In 1999, a sample of a radioactive substance had a mass of 800 milligrams. Since then, the sample ha...

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