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Mathematics 21 Online
OpenStudy (anonymous):

A rectangular field is to be subdivided in 6 equal fields. There is 8150 feet of fencing available. Find the dimensions of the field that maximizes the total area. What is the maximum area ?

OpenStudy (anonymous):

are you familiar with concept of optimization?

OpenStudy (anonymous):

not exactly...i was trying create and parabolic function and solve...?

OpenStudy (anonymous):

Then you are on the right track

OpenStudy (anonymous):

i have no idea where i went wrong though. how would you do it?

OpenStudy (anonymous):

are 6 equal field square?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

good

OpenStudy (anonymous):

Here is how I would solve it. Since it is equal and square field, I would denote each side as x. by counting I found out that there would be 17 sides

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

17x=8150 x= each side x^2=area of each field

OpenStudy (anonymous):

k

OpenStudy (anonymous):

still question?

OpenStudy (anonymous):

could you follow through on the next step?

OpenStudy (anonymous):

Okay remember that square shape always maximize the area

OpenStudy (anonymous):

x=479 x^2=1358

OpenStudy (anonymous):

ok

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