campbellethan20 campbellethan20
  • 23-03-2018
  • Mathematics
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the volume of a cone with a 30-millimeter radius is 9,420 cubic millimeters.what is the height of the cone to the nearest millimeter?

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gingerpoet
gingerpoet gingerpoet
  • 23-03-2018
V = πr² × (h/3)
9420 = π(30)² × (h/3)
9420 = 10πh
h = 9420 ÷ 10π
h = 299.847 or in nearest millimeters
h = 300 millimeters
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