Precalculus Examples

$\frac{\ln (\frac{18.7}{15.7})}{0.0415}$

Divide $18.7$ by $15.7$ .

$\frac{\ln (1.1910828)}{0.0415}$

Replace $e$ with an approximation.

$\frac{\log_{2.71828182} (1.1910828)}{0.0415}$

Log base $2.71828182$ of $1.1910828$ is approximately $0.17486281$ .

$\frac{0.17486281}{0.0415}$

Divide $0.17486281$ by $0.0415$ .

$4.21356172$