Question

The function C(w) = 0.013w^2 - w - 7 estimates the wind chill temperature C(w) at 0F for wind speeds w from 5 to 30 miles per hour. Estimate the wind chill temperature at 0F if the wind speed is 20 miles per hour

Answer 1

The given equation is already formulated for you. The boundaries for this equation is between 5 to 30 miles per hour. Since the wind speed is 20 miles per hour, you can use this equation. Just substitute w = 20 to wind C.

C(20) = 0.013(20)² - 20 - 7
C = -21.8 F

Hence, the chill temperature is -21.8 degrees Fahrenheit when the wind speed is 20 mph.