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a ferris wheel has the diameter of 240 feet and the bottom of the ferris wheel is 9 feet above the ground. find the equation of the wheel if the origin is placed on the ground directly below the center of the wheel

  • math -

    If a circle of radius r has center at (h,k) the equation of the circle is
    (x-h)² + (y-k)² = r²

    So, plug and chug:

    x² + (y-(120+9))² = 120²
    x² + (y-129)² = 14400

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