Suppose the lowest temperature recorded in Indianapolis, Indiana, was
If x is the wind speed in miles per hour and
, then the wind chill (in degrees Fahrenheit) for an air temperature of
can be approximated by the function
. At what rate is the wind chill changing when the wind speed is 50 mph? Round your answer to two decimal places.
A) 
B) 
C) 
D) 
E) 
Correct Answer:
Verified
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