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Math Help - Really need some help please!

  1. #1
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    Exclamation Really need some help please!

    Hi, how should I integrate this problem? find the area of the region enclosed by the equations:
    2y=5sqrt(x),y=5, and 2y+2x=7. Thanks
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  2. #2
    MHF Contributor kalagota's Avatar
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    it seems similar to these..

    http://www.mathhelpforum.com/math-he...tml#post168552

    except that the coefficients changed.. so try to do a similar solution..
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  3. #3
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    Quote Originally Posted by eawolbert View Post
    Hi, how should I integrate this problem? find the area of the region enclosed by the equations:
    2y=5sqrt(x),y=5, and 2y+2x=7. Thanks
    Intersection point of 2y = 5 sqrt(x) and 2y + 2x = 7 is (1, 5/2):

    Substitute 2y = 5 sqrt(x) into 2y + 2x = 7: 5 sqrt(x) + 2x = 7. An obvious solution (and therefore avoid the algebra) is x = 1.

    I'd integrate wrt y: Area = int[5/2, 5] (2y - 5)^2 - (7 - 2y)/2 dy.
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