This exercise uses the radioactive decay model. The half-life of cesium-137 is 30 years. Suppose we have a 13-g sample. (a) Find a function m(t) = mo2-t/h that models the mass remaining after t years. m(t) = (b) Find a function m(t) = moert that models the mass remaining after t years. (Round your r value to four decimal places.) m(t) = (c) How much of the sample will remain after 77 years? (Round your answer to one decimal place.) g (d) After how many years will only 2 g of the sample remain? (Round your answer to the nearest whole number.) yr
This exercise uses the radioactive decay model. The half-life of cesium-137 is 30 years. Suppose we have a 13-g sample. (a) Find a function m(t) = mo2-t/h that models the mass remaining after t years. m(t) = (b) Find a function m(t) = moert that models the mass remaining after t years. (Round your r value to four decimal places.) m(t) = (c) How much of the sample will remain after 77 years? (Round your answer to one decimal place.) g (d) After how many years will only 2 g of the sample remain? (Round your answer to the nearest whole number.) yr
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
Section: Chapter Questions
Problem 13CC
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Question
![This exercise uses the radioactive decay model.
The half-life of cesium-137 is 30 years. Suppose we have a 13-g sample.
(a) Find a function m(t) = mo2-t/h that models the mass remaining after t years.
m(t) =
(b) Find a function m(t) = moert that models the mass remaining after t years. (Round your r value to four decimal places.)
m(t) =
(c) How much of the sample will remain after 77 years? (Round your answer to one decimal place.)
g
(d) After how many years will only 2 g of the sample remain? (Round your answer to the nearest whole number.)
yr](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F076cf337-ca04-4cd7-8e92-fdbadf0d0ca6%2F22a876e1-e9e4-4a2f-a9ce-5e56cf07ac62%2Fgfv3pjf_processed.png&w=3840&q=75)
Transcribed Image Text:This exercise uses the radioactive decay model.
The half-life of cesium-137 is 30 years. Suppose we have a 13-g sample.
(a) Find a function m(t) = mo2-t/h that models the mass remaining after t years.
m(t) =
(b) Find a function m(t) = moert that models the mass remaining after t years. (Round your r value to four decimal places.)
m(t) =
(c) How much of the sample will remain after 77 years? (Round your answer to one decimal place.)
g
(d) After how many years will only 2 g of the sample remain? (Round your answer to the nearest whole number.)
yr
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