2. Suppose the remaining quantity, measured in grams, of a radioactive substance present after time, t, is given by O(t) = 500e , where t is measured in days.

College Algebra
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ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter4: Exponential And Logarithmic Functions
Section: Chapter Questions
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2. Suppose the remaining quantity, measured in grams, of a radioactive substance present after time, t, is given by
-.05t
Q(t) = 500eUR, where t is measured in days.
a. Find the initial quantity present.
b. Find the quantity present after a week.
c. What is the half-life of the radioactive substance?
Transcribed Image Text:2. Suppose the remaining quantity, measured in grams, of a radioactive substance present after time, t, is given by -.05t Q(t) = 500eUR, where t is measured in days. a. Find the initial quantity present. b. Find the quantity present after a week. c. What is the half-life of the radioactive substance?
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