(1 point) The number of hours, H, of daylight in Madrid as a function of date is approximated by the formula H= 12 + 2.4 sin(0.0172(t - 80)), where t is the number of days since the start of the year. (We can think of t = 0 as the stroke of midnight on Dec. 31/Jan 1; thus, January falls between t = 0 and t = 31, February falls between t = 31 and t = 59, etc.). Find the average number of hours of daylight in Madrid (assuming in each case that it is not a leap year): A. in January: average hours = B. in July average hours = C. over a year: average hours = Be sure that you give a reasonably accurate estimate for parts A and B, and that you can explain why the relative magnitudes of your answers to parts A, B, and C are reasonable