Logarithms (algebra 2) Pay: 1,000 Credits

Discussion in 'GR Classic Archive' started by liltony9144, May 26, 2008.

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  1. liltony9144

    liltony9144 Well-Known Member

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    Okay, I have 3 pages due by Tuesday (really Wednesday, but I figure the earlier the better. :P) I'm only requiring the person who takes this up to do one page and to teach me how to do 3 different problems (which I will list later) step by step. The pay is 1,000 credits.

    The reason I want you to teach me is because I've been absent ALOT during this past semester, and I never had a chance to learn it.

    Here's the page:

    AND I want to know how to do one of the problems above, and the following:

    log<sub>5</sub>x = 2log<sub>5</sub>10

    &

    10<sup>x</sup> = 923

    MONDAY NIGHT if possible (Will be up until at least 1 am tue morning, and will wake at 7, but I want to at least have a chance to complete the other two assignments.)
     
  2. thesickness89

    thesickness89 Well-Known Member

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    i actually failed this section last month, good luck.
     
  3. Abgrund

    Abgrund Well-Known Member

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    Do you have a calcualtor? If so, it is quite easy. You'll just need to learn the concepts.
     
  4. J-G

    J-G Well-Known Member

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    yah almost all of this can be done on a calculator
     
  5. liltony9144

    liltony9144 Well-Known Member

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    Yup, actually, I do have a calculator. :eek:
     
  6. zzapper

    zzapper Well-Known Member

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    log5x = 2log510 Isn't this one just

    log5x = 2log510 -log5
    x = log510 -10
    x-10=log5

    Not sure..
     
  7. HydrogeN

    HydrogeN Well-Known Member

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    1. 9
    2. 32 = 4<sup>x</sup>
    3. 32 = 9<sup>x</sup>
    4. 2
    5. 4
    6. 1/25
    7. 0
    8. 1/9

    etc.......

    If you need help just find me on aim one time or something and I'll help u for free

    AIM = skilledplayer69
     
  8. Prince Zainx

    Prince Zainx The Dark Prince

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    These are simple
    using the logarithmic laws

    I can teach you how to do this in seconds
    My MSN is [email protected]
    Contact me in about 20 minutes ... LUNCH time for me

    Also I will post the answers here in 20 min ;)

    after lunch
    -Z
     
  9. Quyxz

    Quyxz Senior Member

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    I can also help you. :)

    ---

    Here are the last 6 answers.

    09) 1
    10) 3
    11) 8
    12) -2
    13) 81
    14) 5

    ---

    log(5)x = 2log(5)10

    First find out what the right part is.
    log(5)10= 1.43....
    Do that *2 = 2.86...

    And then
    x = 5^2.86...
    x= 100

    ---

    10^x = 923
    x = log(10)923
    x = 2.9652......
     
  10. Prince Zainx

    Prince Zainx The Dark Prince

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    Ok Back and here are the answers:

    1. log<sub>7</sub>7<sup>9</sup> = x
    x = 9
    2. log<sub>4</sub>32 = x
    x = 2.5
    3. log<sub>9</sub>32 = x
    x = 1.5773
    4. log<sub>4</sub>16 = x
    x = 2
    5. log<sub>x</sub>4 = 1
    x = 4
    6. log<sub>5</sub>X = -2
    x = 1/25
    7. log<sub>3</sub>1 = x
    x = 0
    8. log<sub>x</sub>81= -2
    x = 1/9
    9. log<sub>3</sub>24 - log<sub>3</sub>8 = x
    x = 1
    10. 2log<sub>4</sub>8 = x
    x = 3
    11. log<sub>64</sub>X = (1/2) <- one half. lol
    x = 8
    12. log<sub>3</sub>(1/9) = x
    x = -2
    13. log<sub>x</sub>9 = (1/2)
    x = 81
    14. log<sub>10</sub>500 + log<sub>10</sub>200 = x
    x = 5

    Also:
    log<sub>5</sub>x = 2log<sub>5</sub>10
    RHS: 2 * (log <sub>5</sub> 10 )
    = 2 * (1.43067)
    = 2.86135
    LHS: log <sub>5</sub>x = 2.86135
    Meaning 5<sup>2.86135</sup> = X
    X = 100

    10[sup]x = 923
    Meaning
    Log (923) / Log (10) = x
    x = 2.965201

    Enjoy
    -Zain

    Edit: Whoops Looks like Quyxz got em :P
     
  11. HydrogeN

    HydrogeN Well-Known Member

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    YAY right ftw!
     
  12. Prince Zainx

    Prince Zainx The Dark Prince

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    I did Logs and Ln like 2 years ago :)
    In HS XD

    -Z
     
  13. zzapper

    zzapper Well-Known Member

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    Never had this :D but thought my method was ok :D
     
  14. liltony9144

    liltony9144 Well-Known Member

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    Thanks and I love your avatar, rofl.



    Thanks both of ya'll. To be honest, I want to give 1,000 to both of you but is it okay with ya'll if I give you 500 each? I'm pretty sure this is against the rules, but maybe I can pay ya'll the final 500 credits when I buy some more when I get my job? lol
     
  15. AG Mountaineer

    AG Mountaineer Well-Known Member

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    These sare quite easy, once you know the laws they are cake.
     
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