College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 6 - Section 6.7 - Financial Models - 6.7 Assess Your Understanding - Page 475: 38

Answer

$ 5.827\%$

Work Step by Step

The amount A after t years due to a principal P Apply the theorem: The effective rate of interest $r_{e}$ of an investment earning an annual interest rate $r$ is given by Compounding $n$ times per year: $r_{e}=\displaystyle \left(1+\frac{r}{n}\right)^{n}-1$ Continuous compounding: $\quad r_{e}=e^{r}-1$ --- Compounding continuously, given $r_{e}=0.06,$ $0.06=e^{r}-1\qquad.../+1$ $1.06=e^{r}\qquad.../\ln(...)$ $\ln 1.06=r$ $r\approx 0.05827$ $ r\approx 5.827\%$
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