## iheartfood 2 years ago question inside!! :)

1. iheartfood

|dw:1353462316419:dw|

2. iheartfood

answer choices A,B,C,D from top to bottom :)

3. jim_thompson5910

here are the log rules you will use

4. jim_thompson5910
5. iheartfood

kk :)

6. jim_thompson5910

use rule #1 to break up the expression to get log(10^5) + log(x^3)

7. jim_thompson5910

what rule is used next?

8. iheartfood

umm, idk rule #2?

9. jim_thompson5910

10. iheartfood

sorry rule #1? cuz its + ?

11. jim_thompson5910

we used rule 1 to get log(10^5) + log(x^3)

12. iheartfood

ohhh then idk :( I'm confused :(

13. jim_thompson5910

read the rules again and look at the examples

14. iheartfood

okay so i am looking for the rule that solves log(10^5) + log(x^3) ??

15. jim_thompson5910

you're looking for a rule that can simplify that yes

16. iheartfood

okay so do i use rule #3??

17. iheartfood

idk, is that right? rule 3?

18. jim_thompson5910

yep, that allows you to pull down the exponents

19. iheartfood

okay so how do i solve from there? I'm still a bit lost :(

20. jim_thompson5910

ex: rule 3 says we can go from log(10^5) to 5*log(10)

21. iheartfood

ohh okay so i get this? log(10^5) + log(x^3) = 5log(10) + 3log(x) ??

22. jim_thompson5910

keep going

23. iheartfood

which then =5+3log(x) so my answer is D?? is that right? :O

24. jim_thompson5910

the log of 10 is 1 (since log is default base 10)

25. jim_thompson5910

yep

26. iheartfood

okay so if i have 6log(10) my answer is 6?

27. iheartfood

and yay!! :)

28. jim_thompson5910

yep

29. iheartfood

kk thanks!!

30. iheartfood

kk thanks!!

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