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Mathematics 27 Online
OpenStudy (waheguru):

The area of a field is given by the expression A = -2(x + 3)(x – 9). Determine the maximum area that this field can enclose.

OpenStudy (waheguru):

Can someone please explain how to solve this problem

OpenStudy (waheguru):

Its quadratics relations

OpenStudy (waheguru):

@waterineyes ;)

OpenStudy (waheguru):

How do I find the area

OpenStudy (anonymous):

do u hv the answer by the way??

OpenStudy (waheguru):

yes, but I dont understand how to get it or what it means?

OpenStudy (anonymous):

what is the answer given??

OpenStudy (waheguru):

maximum area is 73 when x = 3

OpenStudy (waheguru):

its the vertex of the parabola

OpenStudy (anonymous):

that is what I was going to say --- the maximum value of the quadratic is at vertex.

OpenStudy (waheguru):

But what is x and what is y?

OpenStudy (waheguru):

does it mean that each side is 3 units?

OpenStudy (anonymous):

sorry, do not know how to explain it.......

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