Question: O EXPONENTIAL AND LOGARITHMIC FUNCTIONS Writing and evaluating a function modeling continuous... :l|:ll:ll:ll:> 3/5 V A sample of a radioactive substance has an initial mass

O EXPONENTIAL AND LOGARITHMIC FUNCTIONS Writing and evaluating a function modeling continuous... :l|:ll:ll:ll:> 3/5 V A sample of a radioactive substance has an initial mass of 277.1 mg. This substance follows a continuous exponential decay model and has a half-life of 18 days. (a) Let t be the time (in days) since the start of the experiment, and let y be the amount of the substance at time t. Write a formula relating y to 1'. Use exact expressions to fill in the missing parts of the formula. Do not use approximations. y = [lent (b) How much will be present in 7 days? Do not round any intermediate computations, and round your answer to the nearest tenth. Elms
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