SOLUTION: Can u show me how to evaluate: log base 81 of 9

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Can u show me how to evaluate: log base 81 of 9      Log On


   

Question 26121: Can u show me how to evaluate: log base 81 of 9
Answer by mathrebel(25) About Me  (Show Source):
You can put this solution on YOUR website!
log base 81 of 9=x, means 81^(x)=9 so x=(1/2)
check solution: 81^(1/2)=9