Maribel Daugherty

Mathematics

5 October, 20:30

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 7 days. Estimate the percentage of the original amount of the isotope released by the explosion that remains 2 days after the explosion.

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