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The Radius of a Circle Is Increasing at a Rate

Question 79

Multiple Choice

The radius of a circle is increasing at a rate of 6 ft/min. At what rate is its area changing when the radius is 7 ft? ​


A) The radius of a circle is increasing at a rate of 6 ft/min. At what rate is its area changing when the radius is 7 ft? ​ A) Sq ft/min B) Sq ft/min C) Sq ft/min D) Sq ft/min E) Sq ft/min
Sq ft/min
B) The radius of a circle is increasing at a rate of 6 ft/min. At what rate is its area changing when the radius is 7 ft? ​ A) Sq ft/min B) Sq ft/min C) Sq ft/min D) Sq ft/min E) Sq ft/min
Sq ft/min
C) The radius of a circle is increasing at a rate of 6 ft/min. At what rate is its area changing when the radius is 7 ft? ​ A) Sq ft/min B) Sq ft/min C) Sq ft/min D) Sq ft/min E) Sq ft/min
Sq ft/min
D) The radius of a circle is increasing at a rate of 6 ft/min. At what rate is its area changing when the radius is 7 ft? ​ A) Sq ft/min B) Sq ft/min C) Sq ft/min D) Sq ft/min E) Sq ft/min
Sq ft/min
E) The radius of a circle is increasing at a rate of 6 ft/min. At what rate is its area changing when the radius is 7 ft? ​ A) Sq ft/min B) Sq ft/min C) Sq ft/min D) Sq ft/min E) Sq ft/min
Sq ft/min

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