## Calculus 8th Edition

if the temperature and the wind speed is $-15C$ and $40km/h$, then the air would feel the same as $-27C$ with no wind.
$f(-15, 40)$ $f(-15, 40) = -27$ $f(T,v) = f(-15,40) =-27$ $T=-15$ and $v=40$ and $w = -27$