alegebra

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a stone is thrown into a cylindrical water tank 2 feet in diameter, causing it to rise 1.5 inches. what is the volume of the stone?

  • alegebra -

    Does the tank or the water rise? Your question doesn't make that clear.

  • alegebra -

    the water rises

  • alegebra -

    the change in the volume of the water in the tank equals the volume of the stone

    so volume change = Pi(r^2)h, where r is the radius and h is the height
    so V = Pi(24^2)(1.5) cu inches
    = appr. 2714 cu inches.

  • alegebra -

    24 inches isn't that the diameter

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