mindoflogic mindoflogic

18-01-2017
Mathematics

Answered

Solve log 2x + log 5 = 1. Round to the nearest thousandth if necessary.

A25
B4
C1
D100

Verified Answer :

18-01-2017

First condense the log
log 2x + log 5 =1
log 2x*5 = 1
log 10x = 1
Take the base 10 of each side to clear the log
10^(log10x) = 10^1
10x = 10
x = 1
The answer is C

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