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December 19, 2014

December 19, 2014

Posted by **confused** on Tuesday, November 27, 2012 at 11:21pm.

7^x=8

a. x= Write in exact solution

b. then with that answer move the decimal 3 points over

- college algebra -
**Jennifer**, Wednesday, November 28, 2012 at 3:25pmlog10(7^x) = log10(8)

Using log rules (log(a^b) = b*log(a))

x*log10(7) = log10(8)

x*.845 = .903 = log(8)/log(7)

x = 1.068 to 3 decimals

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