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iheartfood Group Title

question inside!! :)

  • one year ago
  • one year ago

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  1. iheartfood Group Title
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    |dw:1353462316419:dw|

    • one year ago
  2. iheartfood Group Title
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    answer choices A,B,C,D from top to bottom :)

    • one year ago
  3. jim_thompson5910 Group Title
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    here are the log rules you will use

    • one year ago
  4. jim_thompson5910 Group Title
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    http://www.purplemath.com/modules/logrules.htm

    • one year ago
  5. iheartfood Group Title
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    kk :)

    • one year ago
  6. jim_thompson5910 Group Title
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    use rule #1 to break up the expression to get log(10^5) + log(x^3)

    • one year ago
  7. jim_thompson5910 Group Title
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    what rule is used next?

    • one year ago
  8. iheartfood Group Title
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    umm, idk rule #2?

    • one year ago
  9. jim_thompson5910 Group Title
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    read the rules carefully

    • one year ago
  10. iheartfood Group Title
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    sorry rule #1? cuz its + ?

    • one year ago
  11. jim_thompson5910 Group Title
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    we used rule 1 to get log(10^5) + log(x^3)

    • one year ago
  12. iheartfood Group Title
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    ohhh then idk :( I'm confused :(

    • one year ago
  13. jim_thompson5910 Group Title
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    read the rules again and look at the examples

    • one year ago
  14. iheartfood Group Title
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    okay so i am looking for the rule that solves log(10^5) + log(x^3) ??

    • one year ago
  15. jim_thompson5910 Group Title
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    you're looking for a rule that can simplify that yes

    • one year ago
  16. iheartfood Group Title
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    okay so do i use rule #3??

    • one year ago
  17. iheartfood Group Title
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    idk, is that right? rule 3?

    • one year ago
  18. jim_thompson5910 Group Title
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    yep, that allows you to pull down the exponents

    • one year ago
  19. iheartfood Group Title
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    okay so how do i solve from there? I'm still a bit lost :(

    • one year ago
  20. jim_thompson5910 Group Title
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    ex: rule 3 says we can go from log(10^5) to 5*log(10)

    • one year ago
  21. iheartfood Group Title
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    ohh okay so i get this? log(10^5) + log(x^3) = 5log(10) + 3log(x) ??

    • one year ago
  22. jim_thompson5910 Group Title
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    keep going

    • one year ago
  23. iheartfood Group Title
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    which then =5+3log(x) so my answer is D?? is that right? :O

    • one year ago
  24. jim_thompson5910 Group Title
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    the log of 10 is 1 (since log is default base 10)

    • one year ago
  25. jim_thompson5910 Group Title
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    yep

    • one year ago
  26. iheartfood Group Title
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    okay so if i have 6log(10) my answer is 6?

    • one year ago
  27. iheartfood Group Title
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    and yay!! :)

    • one year ago
  28. jim_thompson5910 Group Title
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    yep

    • one year ago
  29. iheartfood Group Title
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    kk thanks!!

    • one year ago
  30. iheartfood Group Title
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    kk thanks!!

    • one year ago
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