The temperature in Winterberg is a sinusoidal function in time.120 days ago, the temperature was at its maximum value of 55â—¦F. Thetempearture has been falling since then, and 20 days from today itwill reach its minimum value of 10â—¦F.
(a) Write a function f(t) in sinusoidal standard form for thetemperature in Winterberg, in Fahrenheit, t days from today
b)People can only ski when the temperature is below 28â—¦F. Overthe next 700 days (starting today), for how many days is it coldenough to ski? You can round all your answers to the nearestday.