Given that 10x = 0.2 and log102 = 0.3010, find x
- -1.3010
-
-0.6990
- 0.6990
- 1.3010
- 0.02
The correct answer is: B
Explanation
Given that log102 = 0.3010, If 10x = 0.2
log1010x = log10 0.2 = log10
xlog10 10 = log10 2 - log1010 since log10 10 = 1
x = 0.3010 - 1
x = -0.6990