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Solve the problem.
-A racetracks curve is banked so that the outside of the curve is slightly elevated or inclined above the inside of the curve. This inclination is called the elevation of the track. The maximum speed on the track in miles per hour is given by
where is the radius of the track in miles and is the elevation in degrees. Find the maximum speed for a racetracks with an elevation of and a radius of miles. Round to the nearest mile per hour.
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