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  3. a if a is the area of a circle with radius r and t

a If A is the area of a circle with radius r and the circle...

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Calculus

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a If A is the area of a circle with radius r and the circle expands as time passes find dA dt dA dt dr dt in terms of dr dt b Suppose oil spills from a ruptured tanker and spreads in a circular pattern If the radius of the oil spill increases at a constant rate of 2 m s exactly how fast in m s is the area of th increasing when the radius is 29 m m s

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