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02-06-2023
Mathematics

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The half-life of an element is 4.3 x 10⁸ yr. How long does it take a sample of the element to decay to 3/5 of its original mass? Use A = A₀ 1/2 ^(t/T) where Ag is the initial amount, T is the half-life, and t is the time. (Express results in scientific notation, rounded to the nearest hundredth.)

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