of Thunder Bay, Ontario, has average monthly temperatures that vary between - 14.8°C and 17.6°C. The following table gives the average monthly temperatures, averaged over many years. Determine the equation of the sine function that describes the data, and use your equation to determine the times that the temperature is below 0°C. Feb. Mar. Apr. May June July Aug. Month Average Temperature (°C) Jan. Sep. Oct. -14.8-12.7 -5.9 2.5 8.7 13.9 17.6 16.5 11.2 5.6 Nov. Dec. -2.7 -11.1

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