Solve log 1/100 = log (10x + 2).

A. x = - 4

B. x = 4

C. x = 0

D. x = - 2

Question

Mathematics

Cynthia

21 January, 20:41

Solve log 1/100 = log (10x + 2).

A. x = - 4

B. x = 4

C. x = 0

D. x = - 2

+4

Answers (1)

Know the Answer?

William Lester · Answer 1

Your answer would be Dx=-4.

Here is why: log implies that the base is 10log10n=nlog10=n

Using the above two facts, you will be able to get:

1100 = 10 - 2, so log (1100) = - 2

log10 x+2 = x+2

x+2=-2, so x = - 4

Solve log 1/100 = log (10x + 2).A. x = - 4B. x = 4C. x = 0D. x = - 2

Solve log 1/100 = log (10x + 2).

A. x = - 4

B. x = 4

C. x = 0

D. x = - 2