Use common logarithms or natural logarithms and a calculator to evaluate to four decimal places
-$\log _ { 8 } 20$
A) $1.4406$
B) $0.6941$
C) $2.2041$
D) $0.3979$

Question

Quizplus · Accepted Answer

To evaluate $\log _ { 8 } 20$, we can use the change of base formula: $\log _ { 8 } 20 = \frac{\log _ { 10 } 20}{\log _ { 10 } 8}$ or $\log _ { 8 } 20 = \frac{\ln 20}{\ln 8}$. Using a calculator, the result is approximately 1.4406.

Use Common Logarithms or Natural Logarithms and a Calculator to Evaluate