The mass of a radioactive substance follows a continuous exponential decay model, with a decay rate parameter of 7% per day. A sample of this radioactive substance was taken two days ago. If the sample has a mass of 3 kg today, find the initial mass of the sample. Round your answer to two decimal places. Note: This is a continuous exponential decay model.And though the decay rate parameter is 7% per day, the actual decay is not 7% each day.

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter4: Exponential And Logarithmic Functions
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Problem 12CC: Suppose that the initial size of a population is n0 and the population grows exponentially. Let n(t)...
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The mass of a radioactive substance follows a continuous exponential decay model, with a decay rate parameter of
7
%

per day. A sample of this radioactive substance was taken two days ago. If the sample has a mass of
3

kg

today, find the initial mass of the sample. Round your answer to two decimal places.
Note: This is a continuous exponential decay model.
And though the decay rate parameter is
7
%

per day, the actual decay is not
7
%

each day.

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