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lisapressley2001
lisapressley2001 lisapressley2001
  • 05-01-2017
  • Mathematics
Answered

Solve log (7x+3)=2 .Round to the nearest thousandth if necessary

Verified Answer :

apologiabiology
apologiabiology apologiabiology
  • 05-01-2017

since no base is stated, assume the base is 10
remember
\(log_a(b)=c\) trasnlates to \(a^c=b\) so
\(log_{10}(7x+3)=2\) trasnlates to \(10^2=7x+3\)

10^2=7x+3
100=7x+3
minus 3 both sides
97=7x
divide by 7 both sides
97/7=x
13.8571=x
13.857=x


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