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Mathematics, 14.12.2019 02:31 bear342

Abreeder reactor converts uranium-238 into an isotope of plutonium-239 at a rate proportional to the amount of uranium-238 present at any time. after 10 years, 0.03% of the radioactivity has dissipated (that is, 0.9997 of the initial amount remains). suppose that initially there is 180 pounds of this substance. find the half-life. (round your answer to the nearest whole number.)

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