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
Related questions
Question
![9. Chemical X decays exponentially. The amount, A(t), of one particular sample of Chemical X is
given by the function
A(t) = 25.4e " where A(t) is in grams and t is time in years.
a. How many grams of Chemical X are initially present?
b. How many grams of Chemical X will be there in 5 years
c. How many years will it take for the amount of Chemical X to decay to 10 grams? Solve
symbolically for the exact value, then round your answer to one decimal place.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F750962b2-8a27-4d23-a3d9-9b96eef37be1%2F5794e8ab-15f0-4285-a243-5986dfb1c435%2Fov69myu_processed.png&w=3840&q=75)
Transcribed Image Text:9. Chemical X decays exponentially. The amount, A(t), of one particular sample of Chemical X is
given by the function
A(t) = 25.4e " where A(t) is in grams and t is time in years.
a. How many grams of Chemical X are initially present?
b. How many grams of Chemical X will be there in 5 years
c. How many years will it take for the amount of Chemical X to decay to 10 grams? Solve
symbolically for the exact value, then round your answer to one decimal place.
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