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 r 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 26° and a radius of
Round to the nearest mile per hour.
A. 171 mph
B. 193 mph
C. 59,899 mph
D. 37,953 mph
Answer: A
Mathematics
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Perform the indicated operation. Simplify the answer when possible.2 + 3
-
A. 6
B. 2
C. 4
D. 5
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Divide.
A. x2 - 5 +
B. 3x2 - 4x - 5 +
C. 3x2 - 4x - 5 +
D. 3x2 - 4x - 5
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Simplify the rational expression.
A. -
B. -14m5p2
C. -14mp
D. -
Mathematics
Simplify the expression. Assume that all variables are positive when they appear.
A. -5 B. 625 C. 5 D. not a real number
Mathematics