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math

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A 4inch-thick concrete slab is being poured for a circular patio 14 feet in diameter. Concrete costs $55 per cubic yard. Find the cost of the concrete, to the nearest cent.

  • math -

    This concrete slab is a cylinder with a height of 4 inches and a circular base with a 14 foot diameter.
    Volume of cylinder = pi * radius^2 * h
    Substitute the values given remembering to change 4 inches to 1/3 foot.
    After you find the volume ( in cubic feet ) multiply by $55..

  • math -

    36 foot by 13 foot

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