Question: Suppose air temperature on a certain day is 30F. Then the equivalent wind chill temperature (in F) produced by a wind with speed v miles

Suppose air temperature on a certain day is 30ºF. Then the equivalent wind chill temperature (in F) produced by a wind with speed v miles per hour (mph) is given by*

if 0 y 4 W(v)=1.25v 18.67 v +62.3 if 4

a. What is the windchill temperature when v = 20 mph? When v = 50 mph?

b. What wind speed produces a windchill temperature of 0F?

c. Is the windchill function W(v) continuous at v = 4? What about at v = 45?

if 0 y 4 W(v)=1.25v 18.67 v +62.3 if 4

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