Question

Evaluate each logarithm. Round your answer to the nearest ten thousandth.

1. Log5 15
2. 3ln (1/e4/5)

Answer 1

1. To evaluate log5 15

Divide

Exact answer: log(15) / log (5)

or 1.682....

2. -3ln ( 1/e^4/5)

Expnad:

-3(-4/5 ln(e))

ln of e = 1

-3(-4/5*1)

-3(-4/5)

As a fraction: 12/5 or 2 2/5

As a decimal 2.4