All edges of a cube are expanding at a rate of 3 centimeters per second. (a) How fast is the surface area changing when each edge is 5 centimeters? (b) How fast is the surface area changing when each edge is 14 centimeters?

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All edges of a cube are expanding at a rate of 3 centimeters per
second.
(a) How fast is the surface area changing when each edge is
5 centimeters?
(b) How fast is the surface area changing when each edge is
14 centimeters?
Transcribed Image Text:All edges of a cube are expanding at a rate of 3 centimeters per second. (a) How fast is the surface area changing when each edge is 5 centimeters? (b) How fast is the surface area changing when each edge is 14 centimeters?
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