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anonymous

  • 5 years ago

evaluate log of 9 71

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  1. Owlfred
    • 5 years ago
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    Hoot! You just asked your first question! Hang tight while I find people to answer it for you. You can thank people who give you good answers by clicking the 'Good Answer' button on the right!

  2. immanuelv
    • 5 years ago
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    1.940029217

  3. immanuelv
    • 5 years ago
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    is it log base 9?

  4. anonymous
    • 5 years ago
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    \[log_9(71)=\frac{ln(91)}{ln(9)}\]

  5. immanuelv
    • 5 years ago
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    uhhh. u mean ln 71?

  6. anonymous
    • 5 years ago
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    i meant \[\frac{ln(71)}{ln(9)}\]

  7. anonymous
    • 5 years ago
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    silly me

  8. anonymous
    • 5 years ago
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    are you sure it isn't \[log_9(81)=2\] because \[9^2=81\]?

  9. anonymous
    • 5 years ago
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    you guys rock!

  10. anonymous
    • 5 years ago
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    yes its \[\log_{9} 71\]

  11. anonymous
    • 5 years ago
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    k then use change of base formula as we wrote

  12. anonymous
    • 5 years ago
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    change to what

  13. anonymous
    • 5 years ago
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    btw you can use \[\frac{log(71)}{log(9)}\] too, it doesn't matter what base you use

  14. anonymous
    • 5 years ago
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    oh okayy i get what your saying so the first one is right?

  15. anonymous
    • 5 years ago
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    yes

  16. anonymous
    • 5 years ago
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    91 was a typo

  17. anonymous
    • 5 years ago
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    yeah

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