a rectangle is inscribed in a circle of radius 4. Let p =(x,y) be the point in quadreant 1 that is a vertex of the rectangel and is on the circle. P=(x,y) x2+y2=16 A(x)=4x( square root 16-x2)  area perimeter p(x)= 4x+4(square sott of 16-x2 graph A=A(x) for what value of x is A largest? graph p=p(x). for what value of x is p largest

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