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    Hello

    I'm extremely stuck on this maths question from a 9-1 paper. The question should be attached.

    The main problem is is that I don't know what topic it falls under, as I have looked through all three of my textbooks and I can't find a question that even looks similar to it. I know that it consists of finding the volume of an irregular hemisphere by using the equation of the curve, but I don't know how to apply this knowledge to the question.

    Any help is appreciated.
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    (Original post by LaraPi_)
    Hello

    I'm extremely stuck on this maths question from a 9-1 paper. The question should be attached.

    The main problem is is that I don't know what topic it falls under, as I have looked through all three of my textbooks and I can't find a question that even looks similar to it. I know that it consists of finding the volume of an irregular hemisphere by using the equation of the curve, but I don't know how to apply this knowledge to the question.

    Any help is appreciated.
    You need to find the depth of the bowl, so you need to calculate the value of y at the lowest point on the curve.
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    first step would be to complete the square
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    (Original post by Natsuki_Subaru)
    first step would be to complete the square
    How would I do that with the format of the equation?
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    (Original post by LaraPi_)
    How would I do that with the format of the equation?
    take a factor of 1/10 outside the bracket

    1/10(x^2-30x)
    does that help
    the depth of the bowl would be the minimum y value that you get after completing the square
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    (Original post by Natsuki_Subaru)
    take a factor of 1/10 outside the bracket

    1/10(x^2-30x)
    does that help
    the depth of the bowl would be the minimum y value that you get after completing the square
    That helps a lot. Thank you!
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    (Original post by LaraPi_)
    That helps a lot. Thank you!
    no problem
 
 
 
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