SOLUTION: A Norman window is constructed by adjoining a semicircle to the top of ab ordinary rectangular window. The perimeter of the window is 12 feet. The diameter of a circle and the leng

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Question 1134762: A Norman window is constructed by adjoining a semicircle to the top of ab ordinary rectangular window. The perimeter of the window is 12 feet. The diameter of a circle and the length of a rectangle are x, the width is y.
1) Write the area A of the window as a function of x.
2) What dimensions will produce a window of maximum area?

Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!
given:
The perimeter of the window is feet. The diameter of a circle and the length of a rectangle are the width is .
1) Write the area of the window as a function of .

The perimeter is ft.


.......given .
.....solve for




We find an equation for maximum area.
......






Substitute in for . Now



->the area of the window as a function of

2) What dimensions will produce a window of maximum area?
Next compute . Set it equal to zero and solve for .


set =.










then

Next find .





dimensions that will produce a window of maximum area are:




check the perimeter first then see what would be maximum area






-> true

now find maximum area












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