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Homework Help: Is my teacher's answer key wrong?

  1. Nov 11, 2013 #1
    1. The problem statement, all variables and given/known data
    Find the volume of the space bounded by z=x x^2+y^2=9 and below by the xy plane. I did this and got 9 and so did my group mate, but the answer key (which is often wrong) says 18. Can someone check this? we're trying to study for our test tomorrow :X
  2. jcsd
  3. Nov 11, 2013 #2


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    Science Advisor
    Homework Helper
    Gold Member

    I agree with 18. Pls post your working.
  4. Nov 11, 2013 #3


    Staff: Mentor

    Ditto on 18.
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