Question

How do I find what log91? I couldn't write it but base is 5.

Answer 1

you mean \[\log_{5}91\]this?

Answer 2

yeah

Answer 3

\(\Large log_b x =\frac{log_a x}{log_a b}\)

Answer 4

here's a handy formula\[\log_{b}x=a\rightarrow a^{b}=x\]

Answer 5

where do i find a
Thanks

Answer 6

you can make a = 10

since calculators can easily solve log with base 10 :)

Answer 7

thanks

Answer 8

Anytime! And welcome to OpenStudy! :D