The lengths of the edges of a cube are increasing at a rate of 7 ft/min. At what rate is the surface area changing when the edges are 22 ft long?
A)294 ft2/min
B)1848 ft2/min
C)924 ft2/min
D)6468 ft2/min
E)154 ft2/min

Question

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The Answer of The lengths of the edges of a cube are increasing at a rate of 7 ft/min. At what rate is the surface area changing when the edges are 22 ft long?
A)294 ft2/min
B)1848 ft2/min
C)924 ft2/min
D)6468 ft2/min
E)154 ft2/min

The Lengths of the Edges of a Cube Are Increasing