Results 1 to 5 of 5

Math Help - logarithm assistance

  1. #1
    Newbie
    Joined
    Sep 2012
    From
    spokane, wa
    Posts
    2

    Lightbulb logarithm assistance

    I'm working on some problems and I have hit a stumbling block. Everything I try comes up with the wrong answer. Hopefully someone can help and with the right answer I can work it backwards to understand.

    Thank you!


    Rewrite the logarithm as an exponential equation. (Use capital letters for variables P and U.) P = logb U

    Rewrite the logarithm as an exponential equation. (Use capital letters for variables L, P and R.) L = logb(P + R)

    Rewrite the exponential equation as a logarithm. (Use capital letters for variables F and G.) bF + 1 = G

    Rewrite the exponential equation as a logarithm. (Use capital letters for Q, F, S, and P.) bQF = SP

    An October 2009 article in The Industry Standard states that "independent Twitter data shows exponential tweet growth." GigaTweet, an independent tweet-counting service, reports that the number of tweets was 5.0 billion in October 2009. In April 2009, the number of tweets was 1.6 billion. (a) Develop the exponential growth model that fits with these data, where t is the number of months after April 2009 and p is the number of tweets in billions. (Round the coefficient of t to seven decimal places.)
    p(t) =
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    12,109
    Thanks
    976

    Re: logarithm assistance

    y = \log_b{x} \iff x = b^y
    Follow Math Help Forum on Facebook and Google+

  3. #3
    MHF Contributor

    Joined
    Apr 2005
    Posts
    16,400
    Thanks
    1848

    Re: logarithm assistance

    Quote Originally Posted by spokaneskibum View Post
    I'm working on some problems and I have hit a stumbling block. Everything I try comes up with the wrong answer. Hopefully someone can help and with the right answer I can work it backwards to understand.

    Thank you!
    Don't just say, "Everything I try comes up with the wrong answer". Show us what you tried and we will be better able to point out your misunderstandings.



    Rewrite the logarithm as an exponential equation. (Use capital letters for variables P and U.) P = logb U

    Rewrite the logarithm as an exponential equation. (Use capital letters for variables L, P and R.) L = logb(P + R)

    Rewrite the exponential equation as a logarithm. (Use capital letters for variables F and G.) bF + 1 = G

    Rewrite the exponential equation as a logarithm. (Use capital letters for Q, F, S, and P.) bQF = SP

    An October 2009 article in The Industry Standard states that "independent Twitter data shows exponential tweet growth." GigaTweet, an independent tweet-counting service, reports that the number of tweets was 5.0 billion in October 2009. In April 2009, the number of tweets was 1.6 billion. (a) Develop the exponential growth model that fits with these data, where t is the number of months after April 2009 and p is the number of tweets in billions. (Round the coefficient of t to seven decimal places.)
    p(t) =
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Newbie
    Joined
    Sep 2012
    From
    spokane, wa
    Posts
    2

    Re: logarithm assistance

    Rewrite the logarithm as an exponential equation. (Use capital letters for variables L, P and R.) L = logb(P + R)
    I put " P+R = L ^B"
    Follow Math Help Forum on Facebook and Google+

  5. #5
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    12,109
    Thanks
    976

    Re: logarithm assistance

    Quote Originally Posted by spokaneskibum View Post
    Rewrite the logarithm as an exponential equation. (Use capital letters for variables L, P and R.) L = logb(P + R)
    I put " P+R = L ^B"
    b is the base of the log ... and the base of the exponential

    P+R = b^L
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Need assistance...!
    Posted in the New Users Forum
    Replies: 2
    Last Post: July 25th 2012, 12:23 AM
  2. Replies: 3
    Last Post: July 18th 2011, 08:04 AM
  3. I need assistance
    Posted in the Algebra Forum
    Replies: 1
    Last Post: July 13th 2008, 12:37 AM
  4. Need assistance...please
    Posted in the Calculus Forum
    Replies: 0
    Last Post: April 28th 2008, 03:25 PM
  5. Logarithm.... Too long, need assistance
    Posted in the Calculus Forum
    Replies: 3
    Last Post: January 27th 2007, 01:14 AM

Search Tags


/mathhelpforum @mathhelpforum