A scientist begins with 1000 grams of a radioactive substanc…
A scientist begins with 1000 grams of a radioactive substance. After 90 minutes, the sample has decayed to 750 grams. Part a) Determine the rate of decay (find k) and round to 6 decimal places. Part b) Write an exponential equation representing the situation. Part c) How much is remaining after 120 minutes (round to three decimal places)? Label your answer. Formulas (if needed): formulas test 3.png
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