Calculus

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A conical vessel is 12 feet across the top and 15 feet deep. If it contains a liquid weighing ñ lbs/ft^3 to a depth of 10 feet. Find the work done in pumping the liquid to a height of 3 feet above the vessel.

• Calculus -

Is there a number for the desnity?
All I see is the symbol ñ

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