Homework Help: Algebra II

Posted by Lucy on Saturday, March 29, 2008 at 3:48pm.

Write the equation log243(81)=4/5 in exponential form.

My answer is 243^4/5=81.

Evaluate 9^log9(54).
My answer is 6.

Are these correct??

Thanks

Algebra II - Damon, Saturday, March 29, 2008 at 4:15pm
Yes for the first one

9^log 9 of 54
but base^log same base (x) = x
so I get 54 for an answer

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