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Mathematics 16 Online
OpenStudy (anonymous):

The area of a rectangular athletic field is represented by the expression 9z^7-42z^4+72z^2 square meters. Write an algebraic expression to represent one possible set of dimensions (in he sense of length times width) of the athletic field. Include correct units with your solution.

OpenStudy (anonymous):

m afraid i dont understand wt u mean by representing one set of dimensions

OpenStudy (amistre64):

first off factor out the excess baggage

OpenStudy (anonymous):

as in the length and the width of the rectangular field.

OpenStudy (amistre64):

z^2(9z^5 -42z^2 +72)...you sure there aint a typo in this?

OpenStudy (amistre64):

3z^2 (3z^5 -14z^2 +24)

OpenStudy (anonymous):

no there is no typo. why do you ask

OpenStudy (amistre64):

that z^7 is an odd thing to work with...thought maybe it was spoosed to be z^6

OpenStudy (anonymous):

no it is z^7

OpenStudy (amistre64):

with this factored version you have 2 'numbers' to represent a length and width; just pick a z>0...maybe a 1?

OpenStudy (amistre64):

3(3-14+24) 3(13) seems fetching ;)

OpenStudy (anonymous):

what

OpenStudy (amistre64):

the length is (3z^2) ft the width is (3z^5 -14z^2 +24) ft

OpenStudy (amistre64):

whatever number you choose for 'z' will give you a product of lenth times width whichis equal to area

OpenStudy (anonymous):

ok.

OpenStudy (anonymous):

in the problem it is meters, so the answer would be L= 3z^2 meters and W= 3z^5-14z^2+24 meters.

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