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2. Express the length of the radius of a circle as a function of the circumference.

3. The perimeter of a rectangle is 50 centimeters. Express its area A as a function of the length x.​

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VincentCiprianoid

Answer:

2. The diameter of a circle is a function of the radius (d = 2r). and the radius is a function of the circumference (r=C/(2π) r = C / ( 2 π ) ).

3. Perimeter is 2 widths plus 2 lengths. Let X be the width, which makes the length 3X + 1. So the equation to find perimeter, 50 cm, is: 2(X) + 2(3X + 1) = 50.

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