A plane is flying from Atlanta to Seattle, approximately 2,150 miles. The plane flies 30 miles beyond Seattle and then is put in a circular holding pattern around the city that can be modeled by y = 2150 + 30cos( π 10 x), where x is the amount of time that has passed and y is the plane's distance from Atlanta. If the plane circled for 50 minutes, how many revolutions did he complete?

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.

pla·gia·rism

/ˈplājəˌrizəm/

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noun

the practice of taking someone else's work or ideas and passing them off as one's own.

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