Results 1 to 14 of 14

Math Help - completely stumped by problem ... please help !

  1. #1
    Newbie
    Joined
    Apr 2010
    Posts
    18

    completely stumped by problem ... please help !



    i have no clue how to do this problem ... can someone please help ?!?!? is there a formula ?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Super Member Anonymous1's Avatar
    Joined
    Nov 2009
    From
    Big Red, NY
    Posts
    517
    Thanks
    1
    Quote Originally Posted by bringash View Post


    i have no clue how to do this problem ... can someone please help ?!?!? is there a formula ?
    H(w)= \frac{c}{w}

    H(9)=2.78... so,

    2.78 = \frac{c}{9}

    \Rightarrow c = \frac{2.78}{9} = .30889
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Senior Member
    Joined
    Feb 2010
    Posts
    422
    You have a point on the graph (9,2.78). It gives you that H(w) = Constant / w. Plug in the H value, 2.78, for H(w), and the w value, 9, for w, and solve for the constant, 2.78/9.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Newbie
    Joined
    Apr 2010
    Posts
    18
    thanks alot guys

    what about this one ?

    Follow Math Help Forum on Facebook and Google+

  5. #5
    Senior Member
    Joined
    Feb 2010
    Posts
    422
    Try cancelling.

    ...and do your own homework!
    Follow Math Help Forum on Facebook and Google+

  6. #6
    MHF Contributor harish21's Avatar
    Joined
    Feb 2010
    From
    Dirty South
    Posts
    1,036
    Thanks
    10
    Quote Originally Posted by bringash View Post
    thanks alot guys

    what about this one ?

    When x=-2 or x=1, you end up divding the terms by 0.

    What happens when you divide a term by 0?
    Follow Math Help Forum on Facebook and Google+

  7. #7
    Newbie
    Joined
    Apr 2010
    Posts
    18
    Quote Originally Posted by maddas View Post
    Try cancelling.

    ...and do your own homework!
    thanks bro no wonder this website is called mathHELPforum.com
    Follow Math Help Forum on Facebook and Google+

  8. #8
    Newbie
    Joined
    Apr 2010
    Posts
    18
    Quote Originally Posted by harish21 View Post
    When x=-2 or x=1, you end up divding the terms by 0.

    What happens when you divide a term by 0?
    that says does not equal
    Follow Math Help Forum on Facebook and Google+

  9. #9
    Newbie
    Joined
    Apr 2010
    Posts
    18
    im having trouble understanding the wording of the second problem thats why i resorted to you guys for help ... can you please tell me if its true or false so i can do the other ones that are similar ... and please explain why its true or false
    Follow Math Help Forum on Facebook and Google+

  10. #10
    MHF Contributor harish21's Avatar
    Joined
    Feb 2010
    From
    Dirty South
    Posts
    1,036
    Thanks
    10
    Quote Originally Posted by bringash View Post
    that says does not equal

    Yes. the question says when x does NOT equal -2 or 1.

    When x = -2 or x =1, you are dividing by 0, which gives \infty

    So, when x is any other number except -2 or 1, then the equation makes sense.

    So, what can you conclude from here?
    Follow Math Help Forum on Facebook and Google+

  11. #11
    Newbie
    Joined
    Apr 2010
    Posts
    18
    that its true ... thanks alot bro
    Follow Math Help Forum on Facebook and Google+

  12. #12
    Newbie
    Joined
    Apr 2010
    Posts
    18
    im sorry for the dumb questions, but what would i do in this case ?

    Follow Math Help Forum on Facebook and Google+

  13. #13
    Senior Member
    Joined
    Feb 2010
    Posts
    422
    Same as before, H=25, w=10. Substitiute and solve for the constant. \mathrm{constant} = H/w = 25/10 = \cdots

    Quote Originally Posted by harish21 View Post
    When x = -2 or x =1, you are dividing by 0, which gives \infty
    Shh, -\infty don't cry. I know everyone only thinks about your brother +\infty...
    Follow Math Help Forum on Facebook and Google+

  14. #14
    Newbie
    Joined
    Apr 2010
    Posts
    18
    Quote Originally Posted by maddas View Post
    Same as before, H=25, w=10. Substitiute and solve for the constant. \mathrm{constant} = H/w = 25/10 = \cdots



    Shh, -\infty don't cry. I know everyone only thinks about your brother +\infty...
    Ok yes constant = h/w = 25/10 = 2.5

    then constant x w = 2.5 x 10 = 25

    is that right ?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Help with SPSS stats...completely stumped
    Posted in the Statistics Forum
    Replies: 0
    Last Post: October 21st 2011, 09:58 AM
  2. Completely stumped by a picture frame >_<
    Posted in the Algebra Forum
    Replies: 3
    Last Post: October 31st 2009, 08:48 AM
  3. Completely stumped on this problem!
    Posted in the Algebra Forum
    Replies: 4
    Last Post: October 13th 2009, 05:55 PM
  4. Replies: 11
    Last Post: June 30th 2008, 08:26 PM
  5. Im completely stumped by this one.
    Posted in the Calculus Forum
    Replies: 4
    Last Post: April 23rd 2008, 04:44 PM

Search Tags


/mathhelpforum @mathhelpforum