`log_9 (0.1)` Evaluate the logarithm using the change-of-base formula. Round your result to three decimal places.

balajia | Student

`log_9(0.1) = (log_(10)(0.1))/(log_(10)(9))`

`=(log_(10)(10^(-1)))/(log_(10)(3^2))`

`=(-1)/(2log_(10)(3))`

`=(-1)/(0.9542)`

=-1.048