(a) Write the radius \( r \) of the tank as a function of the length \( x \) of the sides of the square. (b) Write the area \( A \) of the circular base of the tank as a function of the radius \( r \). (c) Find and interpret \( (A \circ r)(x) \).
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(a) The radius of the tank is half the length of the side of the square, so \( r(x) = \frac{x}{2} \). Show more…
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