anonymous
  • anonymous
A spherical ballon is being filled with helium at a rate of 8cm^3/s. At what rate is its radius increasing, when it has been filling for 50 seconds?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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bahrom7893
  • bahrom7893
dV/dt = 8cm^3/s t = 50s dr/dt - ?
bahrom7893
  • bahrom7893
V = 4/3*pie*r^3 dV/dt = 4*pie*r^2
bahrom7893
  • bahrom7893
woops sorry forgot dr/dt

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bahrom7893
  • bahrom7893
dV/dt = 4*pie*r^2*(dr/dt)
bahrom7893
  • bahrom7893
8 = 4*pie*r^2*(dr/dt) 2/pie = r^2*(dr/dt)
bahrom7893
  • bahrom7893
was that all info given?
bahrom7893
  • bahrom7893
was it??

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