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Mathematics 21 Online
OpenStudy (anonymous):

Let D be the region in the x,y-plane enclosed by the curves x=y^2-5 and x=2y-2 . Find the volume of the solid with base D that lies under the surface z=4y^2 . helppppppppppppppppp plzzzz

OpenStudy (anonymous):

i know i have to integrate them but i dont know the limit :((((

OpenStudy (anonymous):

take the derivative to get your x, y limits

OpenStudy (anonymous):

derivative of what can u explain

OpenStudy (anonymous):

of your curves

OpenStudy (anonymous):

set your two equations equal to each other (sorry, the previous advice was bad)

OpenStudy (anonymous):

so y^2-5 = 2y - 2

OpenStudy (anonymous):

solve for the roots (it'll be the positive one)

OpenStudy (anonymous):

or… do you have a graphing calculator? TI-83/84?

OpenStudy (anonymous):

i have ti 89 but i dont know how to graph it ???? and how to find volume ??????? can u help step by step ???

OpenStudy (anonymous):

Let me preface by saying that I'm a little rusty on this. :o

OpenStudy (anonymous):

sketch it out

OpenStudy (anonymous):

you will have a line and a parabola

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