Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 3 - Section 3.5 - Exponential Growth and Decay; Modeling Data - Exercise Set - Page 505: 16

Answer

About $4$ grams

Work Step by Step

Model: $ A=A_{0}e^{kt}$ $ t=0$ for the year $2010.$ Unknown: $ A $, when $ A_{0}=16, t=11430,k=-0.000121t $ $ A=A_{0}e^{kt}=16e^{-0.000121\cdot 11430}\approx 4.013$
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