loganr1042
loganr1042 loganr1042
  • 19-11-2020
  • Mathematics
contestada

The radius of a sphere is increasing at a rate of 7.5 meters per minute. At a certain instant, the radius is 5 meters. what is the rate of change of the surface area of the sphere at that instant (In square meters per minute)

Respuesta :

car1233324 car1233324
  • 07-12-2020

Answer:

300 Pi

Step-by-step explanation:

Surface area = 4pir^2

take derivative

8pi(r) * dr/dt

8pi(5) * 7.5

300 pi

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