Question

What is the solution of log z + 12 = 9?
1,000
-0.001
0.001
-1.000
Done

Answer 1

z =0.001

Explanation:

log z + 12 = 9

Subtract 12 from each side

log z + 12-12 = 9-12

log z = -3

Raise each side to the base of 10

10^ log z = 10 ^-3

z = 10 ^-3

z =0.001