1. satellite73

what does the -10 mean at the end?

2. godorovg

it's the power to -10 which mean LN

3. satellite73

??

4. satellite73

\(7.3139^{ - 10}\) like that?

5. godorovg

yes

6. IloveCharlie

Nope. My problem just states (7.3139-10) like how I posted it

7. IloveCharlie

@godorovg ?

8. godorovg

yes

9. IloveCharlie

It's not raised

10. godorovg

what explain further?????

11. IloveCharlie

... If it was raised I would've ^-10. It's not raised. The problem states: Find the common logarithm of (7.3139-10). That's it.

12. satellite73

\(7.3139 - 10=-2.6861\)

13. godorovg

14. IloveCharlie

a. .00206 b. .0000206 c. .000206 d. .0206

15. satellite73

this is a negative number and therefore does not have a common log

16. satellite73

i guess i should just shut up because i clearly do not understand the question

17. IloveCharlie

:(

18. satellite73

ooooh!!!

19. godorovg

the -10 is creating a big trouble here, because of that the answer will be -2 or whatever.

20. satellite73

you don't want the log, you want to raise the power of ten to this number!!

21. satellite73

\(10^{-2.6861}=0.00206\)

22. satellite73

i mean "raise ten to this power"

23. godorovg

thanks so much I could not recall how to this it is has been a while

24. satellite73

this must be some ancient history math written before they used calculators, when there were log tables was your book written in like 1964?

25. IloveCharlie

THANK YOU SATELLITE! YOU ARE MY HERO. :) And thank you so much to @godorovg as well for taking the time to help me out!

26. godorovg

not a problem

27. satellite73

here is what i typed in http://www.wolframalpha.com/input/?i=10^%287.3139-10%29

28. satellite73

yw

29. IloveCharlie

I wish I could give more than one medal :( @godorovg You really deserve one

30. satellite73

i sent him/her one for you

31. IloveCharlie

:)

32. lgbasallote

@godorovg didnt i just tell you how to solve this? o.O

33. godorovg

yes sir you dd I wasn't following I feel like a fool lol

34. lgbasallote

lol =))

35. lgbasallote

guess i didnt explain it well a while ago

36. godorovg

Hey got to admit when you are wrong so I admit it..