Mathematics, 30.05.2020 17:00 shakira11harvey6

Use the exponential decay model, Upper A equals Upper A 0 e Superscript kt, to solve the following. The half-life of a certain substance is 21 years. How long will it take for a sample of this substance to decay to 63% of its original amount? It will take approximately nothing ▼ percent percent per year years for the sample of the substance to decay to 63% of its original amoun

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Use the exponential decay model, Upper A equals Upper A 0 e Superscript kt, to solve the following....