The maximum afternoon temperature in Granderson is modeled b

The maximum afternoon temperature in Granderson is modeled by t = 59 - 30 cos x pi/6 where t represents the maximum afternoon temperature in degrees Fahrenheit in month x, with x = 0 representing January, x = 1 representing February, and so on. Find the maximum afternoon temperature in May. 85 degree F 79 degree F 44 degree F 74 degree F

Solution

given maximum afternoon temperature t =59-30cos(x/6)

in may x =4

t =59-30cos(4/6)

t =59-30cos(2/3)

t =59-30(-1/2)

t =59+15

t=74

maximum afternoon temperature in may =74 ^oF