## anonymous one year ago Help me please Use the Change of Base Formula to evaluate log5 92. Then convert log5 92 to a logarithm in base 3. Round to the nearest thousandth.

1. anonymous

the formula is loga x = logb x ---------- logb a

2. imqwerty

yes correct now u just need to put the values of a,b,x as 5, 3,92

3. anonymous

I'm not sure what the values a and b are

4. imqwerty

$\log_{5} 92 = \frac{ \log_{3}92 }{ \log_{3}5 }$

5. anonymous

like log5 = log3 5 ------ log 3 92 idk didn't do that right probably

6. anonymous

oh so I was close

7. imqwerty

yes :)

8. anonymous

sorry afk but i don't have a calculator that figures this out. Do you know website or something?

9. anonymous

@imqwerty

10. imqwerty

u can go here- http://www.1728.org/logrithm.htm

11. anonymous

not sure how I'd type in the fraction part

12. imqwerty

u just calculate the values of the numerator part nd the denominator part nd then u can divide those values in your normal calculator :)

13. anonymous

yeah don't have a calculator. I've been using the internet but oh well

14. anonymous

okay I'm getting 2.809545

15. anonymous

what was that website you just deleted?

16. imqwerty

nah nevermind well to calculate the value of that fraction u didn't needed to calculate the numerator part nd denominator part separately...nd ol that value is the same as$\log_{5}92$ so basically u just needed to find that :P nd yes the value which u got is correct now just round it to the nearest thousandth

17. anonymous

I have two options with 2.810 so I thought I had to do something else.

18. anonymous

I have 2.810; log3 55.2 or 2.810; log3 21.903 so not sure how to get the last part

19. Hayleymeyer

@imqwerty heres your chance to shine!

20. imqwerty

lol what XD

21. Hayleymeyer

i think she's still asking for help, twerkyy.