The combination of cold temperatures and wind speed determine what is called wind chill. The wind chill is a temperature that is the still-air equivalent of the combination of cold and wind. When the wind speed is 25 mph, the wind chill WC depends on the temperature t (in degrees Fahrenheit) according to . For what temperatures does it feel at least 25°F colder than the air temperature? That is, find t such that

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?



A.
B.
C.
D.
E.


Answer: A

Mathematics

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A. not a function B. function

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Perform the indicated operations and simplify the result. Leave the answer in factored form. + 

A.
B.
C.
D.

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