## Precalculus (6th Edition) Blitzer

Published by Pearson

# Chapter 3 - Section 3.5 - Exponential Growth and Decay; Modeling Data - Concept and Vocabulary Check - Page 505: 7

#### Answer

$$\ln 5$$

#### Work Step by Step

According to the definition of the logarithm, we have$$5=e^{\ln 5} \quad \Rightarrow \quad 3(5)^x=3(e^{\ln 5})^x=3e^{(\ln 5) \cdot x}.$$

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