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Mathematics, 30.10.2021 01:40 kev71

A certain radioactive isotope is a by-product of some nuclear reactors. Due to an explosion, a nuclear reactor experiences a massive leak of this radioactive isotope. Fortunately, the isotope has a very short half-life of 11 days. Estimate the percentage of the original amount of the isotope released by the explosion that remains 5 days after the explosion.

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