Results 1 to 4 of 4

Math Help - please check my work - volume around the y-axis... URGENT

  1. #1
    Newbie
    Joined
    Mar 2007
    Posts
    2

    please check my work - volume around the y-axis... URGENT

    the problem is to find the volume of revolution around the y-axis of x=y^2+6 and x=6. here is my work:



    i think it's wrong, so if somebody could please explain how to do it correctly and what the right answer is, it'd be great.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    is up to his old tricks again! Jhevon's Avatar
    Joined
    Feb 2007
    From
    New York, USA
    Posts
    11,663
    Thanks
    3
    Quote Originally Posted by ashley9 View Post
    the problem is to find the volume of revolution around the y-axis of x=y^2+6 and x=6. here is my work:



    i think it's wrong, so if somebody could please explain how to do it correctly and what the right answer is, it'd be great.
    are you sure those equations are right?
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Mar 2007
    Posts
    2
    ah, no, i typed it wrong. the equations are x=y^2 +2 and x=6. please help...i need this done tonight
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Senior Member ecMathGeek's Avatar
    Joined
    Mar 2007
    Posts
    436
    Quote Originally Posted by ashley9 View Post
    ah, no, i typed it wrong. the equations are x=y^2 +2 and x=6. please help...i need this done tonight
    Your answer is correct
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 4
    Last Post: March 12th 2011, 05:05 AM
  2. Volume around the y-axis
    Posted in the Calculus Forum
    Replies: 2
    Last Post: August 11th 2010, 09:30 PM
  3. Volume about y axis
    Posted in the Calculus Forum
    Replies: 3
    Last Post: April 28th 2010, 07:50 PM
  4. Volume around the Axis
    Posted in the Calculus Forum
    Replies: 5
    Last Post: May 20th 2009, 07:12 PM
  5. Volume around x axis
    Posted in the Calculus Forum
    Replies: 2
    Last Post: February 8th 2009, 01:44 PM

Search Tags


/mathhelpforum @mathhelpforum