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iheartfood

  • 3 years ago

question inside!! :)

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  1. iheartfood
    • 3 years ago
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    |dw:1353462316419:dw|

  2. iheartfood
    • 3 years ago
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    answer choices A,B,C,D from top to bottom :)

  3. jim_thompson5910
    • 3 years ago
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    here are the log rules you will use

  4. jim_thompson5910
    • 3 years ago
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    http://www.purplemath.com/modules/logrules.htm

  5. iheartfood
    • 3 years ago
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    kk :)

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

  7. jim_thompson5910
    • 3 years ago
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    what rule is used next?

  8. iheartfood
    • 3 years ago
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    umm, idk rule #2?

  9. jim_thompson5910
    • 3 years ago
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    read the rules carefully

  10. iheartfood
    • 3 years ago
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    sorry rule #1? cuz its + ?

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

  12. iheartfood
    • 3 years ago
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    ohhh then idk :( I'm confused :(

  13. jim_thompson5910
    • 3 years ago
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    read the rules again and look at the examples

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

  15. jim_thompson5910
    • 3 years ago
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    you're looking for a rule that can simplify that yes

  16. iheartfood
    • 3 years ago
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    okay so do i use rule #3??

  17. iheartfood
    • 3 years ago
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    idk, is that right? rule 3?

  18. jim_thompson5910
    • 3 years ago
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    yep, that allows you to pull down the exponents

  19. iheartfood
    • 3 years ago
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    okay so how do i solve from there? I'm still a bit lost :(

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

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

  22. jim_thompson5910
    • 3 years ago
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    keep going

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

  24. jim_thompson5910
    • 3 years ago
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    the log of 10 is 1 (since log is default base 10)

  25. jim_thompson5910
    • 3 years ago
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    yep

  26. iheartfood
    • 3 years ago
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    okay so if i have 6log(10) my answer is 6?

  27. iheartfood
    • 3 years ago
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    and yay!! :)

  28. jim_thompson5910
    • 3 years ago
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    yep

  29. iheartfood
    • 3 years ago
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    kk thanks!!

  30. iheartfood
    • 3 years ago
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    kk thanks!!

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