Evaluate the expression without the use of a calculator, and then verify your answer using a calculator.
-$\log 10,000$
A) $\frac { 1 } { 10000 }$
B) 40
C) $- 4$
D) 4

Question

Quizplus · Accepted Answer

The logarithm of a number is the exponent to which the base must be raised to produce that number. Since the base is 10 (implied in $\log 10,000$) and $10^4 = 10,000$, the correct answer is 4.

Evaluate the Expression Without the Use of a Calculator, and Then