SOLUTION: Solve. Round any solutions to the fourth decimal place. 4log (base 3) (2r) + log (base 3) (r^3) = 4 There's a base of 3 on the logs, I just don't know how to punch it in.

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Solve. Round any solutions to the fourth decimal place. 4log (base 3) (2r) + log (base 3) (r^3) = 4 There's a base of 3 on the logs, I just don't know how to punch it in.      Log On


   



Question 593171: Solve. Round any solutions to the fourth decimal place.
4log (base 3) (2r) + log (base 3) (r^3) = 4
There's a base of 3 on the logs, I just don't know how to punch it in.

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
[(2r)^4] * (r^3) = 3^4

16 r^7 = 81