Use common logarithms or natural logarithms and a calculator to evaluate to four decimal places
-$\log _ { 20 } 371$
A) $1.9749$
B) $0.5064$
C) $3.8704$
D) $1.2683$

Question

Quizplus · Accepted Answer

To evaluate $\log_{20} 371$, we can use the change of base formula: $\log_{20} 371 = \frac{\log 371}{\log 20}$ or $\log_{20} 371 = \frac{\ln 371}{\ln 20}$, where $\log$ is the common logarithm and $\ln$ is the natural logarithm. Using a calculator to evaluate either expression gives approximately 1.9749.

Use Common Logarithms or Natural Logarithms and a Calculator to Evaluate