Solve.Racing cyclists use the function 
to determine the maximum rate, 
, in miles per hour, to turn a corner of radius x, in feet, without tipping over. What is the maximum rate a cyclist should travel around a corner of radius 38 feet without tipping over? Leave the solution in simplified radical form.
A. 24 + 
mph
B. 24
mph
C. 
mph
D. 4
mph
Answer: D
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