SOLUTION: what is the log base3 of 21

Question 562628: what is the log base3 of 21
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
what is the log base3 of 21
you need a calculator to do this, but calculators usually only have base 10 and base e log functions, so we need to convert to one of these bases like base 10
log base3 of 21
convert to base 10
log base 10 of 21/log base 10 of 3
you can now do it on the calculator with the log key
log base3 of 21≈2.7712...
In other words, 3^2.7712..=21
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