Question

12^r=13 round to the nearest ten thousandth

Answer 1

The answer is 1.032 , you would put into the calculator log(base12) (13)

Answer 2

We have the following expression:
 12 ^ r = 13
 We apply logarithm to both sides of the expression:
 log12 (12 ^ r) = log12 (13)
 By properties of logarithm we have:
 r = log12 (13)
 r = 1.032211555
 round to the nearest ten thousandth:
 r = 1.0322
 Answer:
 r = 1.0322