In Winnipeg, MB there are great discrepancies in the average temperature during the day throughout the year The average daily temperature can be represented by the equation , where m = the month in the year (Jan 1, m= 0) and T represents the temperature in Celcius. T=-18cos π/6(m-1)+1.6
a. What is the average daily temperature on June 1 (m = 5). Show your algebraic calculation.
b. Use graphing technology for the next 2 questions. How long is the average temperature greater than or equal to 16 degrees(Determine the range of dates)
c.What day has the coldest average temperature? What is that temperature?