Solve the equation. Use a calculator where appropriate. If the answer is irrational, round to the nearest hundredth.
-log x = 2
A)20
B)100
C)200
D)2000

Question

Quizplus · Accepted Answer

By definition, log x = 2 is equivalent to 10^2 = x. Using a calculator, we get x = 100. Therefore, choice B is the correct answer. Using the definition of a logarithm, we have:
log x = 2
This means that 10^2 = x.
Using a calculator, we get x = 100. Therefore, the answer is B.

Solve the Equation