An isotope of the element erbium has a half-life of approximately 9 hours. Initially there are 13 grams of the isotope present. a. Write the exponential function that relates the amount of substance remaining, A(t) measured in grams, as a function of t, measured in hours. A(t)= grams b. Use part a. to determine the rate at which the substance is decaying after t hours. A' (t) = grams per hour c. Use part b. to determine the rate of decay at 5 hours. Round to four decimal places. A' (5) grams per hour

An isotope of the element erbium has a half-life of approximately 9 hours. Initially there are 13 grams of the isotope present. a. Write the exponential function that relates the amount of substance remaining, A(t) measured in grams, as a function of t, measured in hours. A(t)= grams b. Use part a. to determine the rate at which the substance is decaying after t hours. A' (t) = grams per hour c. Use part b. to determine the rate of decay at 5 hours. Round to four decimal places. A' (5) grams per hour

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter6: Exponential And Logarithmic Functions

Section6.1: Exponential Functions

Problem 60SE: The formula for the amount A in an investmentaccount with a nominal interest rate r at any timet is...

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