Certain radioactive material decays in such a way that the mass remaining after t years is given by the function m(t) = 490e -0.03t where m(t) is measured in grams. (a) Find the mass at time t : 0. Your answer is (b) How much of the mass remains after 30 years? Your answer is

Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter4: Exponential And Logarithmic Functions
Section4.CR: Chapter Review
Problem 13CC: Suppose that the initial mass of radioactive substance is m0 and the half-life of the substance is...
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Certain radioactive material decays in such a way that the
mass remaining after t years is given by the function
m(t) = 490e-0.03t
where m(t) is measured in grams.
(a) Find the mass at time t = 0.
Your answer is
(b) How much of the mass remains after 30 years?
Your answer is
Round answers to 1 decimal place.
Transcribed Image Text:Certain radioactive material decays in such a way that the mass remaining after t years is given by the function m(t) = 490e-0.03t where m(t) is measured in grams. (a) Find the mass at time t = 0. Your answer is (b) How much of the mass remains after 30 years? Your answer is Round answers to 1 decimal place.
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