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December 21, 2014

Homework Help: Math- Please Help Us!

Posted by Cole n Cynthia on Tuesday, October 9, 2012 at 11:38am.

Diagram has 4 rectangular corrals with a barn above it. Sides (front to back) are attached to the barn. Fencing is not needed along the back of the barn.
P= 200 ft of fencing
If each corral is 16 ft long (front to back), how wide will each corral be, what will be the area of each corral and what will be the combined area of the 4 corrals?

200=32+4y
y= 42
y= 42/2= 21 ft

A=xy
A= (16)(21)=336 ft^2
A=(336)(4)= 1,344 ft^2

These are the answers we got for the questions but, how would we get the (x,y) coordinates and plot it on the parabola if we used the function
A= 200x-5x^2. When we had to find the function for the combined area of 4 corrals if each corral is x feet long.
The function does not seem to go with the answers above.
Please help and explain. Thank you C-C

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