Trisarahtops
  • Trisarahtops
A snowball is melting at the rate of 2 inches per hour. How fast is the surface area of the snowball changing at the instant the snowball has a radius of 3 inches? −16π in2/hour −24π in2/hour −32π in2/hour −48π in2/hour (I think it's this one)
Mathematics
  • Stacey Warren - Expert brainly.com
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chestercat
  • chestercat
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Trisarahtops
  • Trisarahtops
@paki
Er.Mohd.AMIR
  • Er.Mohd.AMIR
surface area=4*pi*r*r given dr/dt=2 inch/h
Er.Mohd.AMIR
  • Er.Mohd.AMIR
so ds/dt=4*pi*(2*r)*(dr/dt)

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Trisarahtops
  • Trisarahtops
okay so 8*pi*(3)(-2) right?
Trisarahtops
  • Trisarahtops
or 4*pi*(2*3)*2
Trisarahtops
  • Trisarahtops
hello?
Er.Mohd.AMIR
  • Er.Mohd.AMIR
yes ds/dt=-2 ans -48*pi
Trisarahtops
  • Trisarahtops
Thank you ;)

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