mindoflogic mindoflogic

19-01-2017
Mathematics

contestada

Solve log 2x + log 5 = 1. Round to the nearest thousandth if necessary.
A. 25
B. 4
C. 1
D. 100

Respuesta :

19-01-2017

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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