The half-life of a certain substance in an aquatic environment is about 150 years. Which of the following exponential functions best models the amount A(t), in grams, of the substance that remains t years after 200 grams of the substance is applied to the aquatic environment? (The half- life is the length of time needed for an amount of the substance to decrease to one-half of that amount.) 200 A) A(C)-150()지 |2001 B) A(t) = 150|) 150t C) A(t) = 200 150 D) A(t) = 200
The half-life of a certain substance in an aquatic environment is about 150 years. Which of the following exponential functions best models the amount A(t), in grams, of the substance that remains t years after 200 grams of the substance is applied to the aquatic environment? (The half- life is the length of time needed for an amount of the substance to decrease to one-half of that amount.) 200 A) A(C)-150()지 |2001 B) A(t) = 150|) 150t C) A(t) = 200 150 D) A(t) = 200
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 12CC: Suppose that the initial size of a population is n0 and the population grows exponentially. Let n(t)...
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