Please solve and show the work for 79. I would prefer a solution done on paper written out step by step

Math 112 - Fall 2019 Midterm 3 Review Problems Clos 19 - 5 Page 21 75T A roast is removed from the freezer (25 . F ) and placed in a room (75 . F). The number of minutes it takes the temperature of the roast to reach x degrees F is given by the formula T = f(x) = 100 In 50 3 (75 -x Use this information to answer the next three questions.getting ended ni 7. Given the context, determine an appropriate domain for the function f(x).(A) (A) (0, 00) (B) (75, 00) (C) (-00, 75) (D) [25, 75) (E) [25, 00) malaiups as daw d tonom botest: noill bee mavs tuition a novin san asavolume worl (") 18 78. Find the x-intercept of the function f(x). (A) (75, 0) "Be ed prove agmove sall blow (B) (50, 0) (C) (25, 0) artinom de bris $5 nowRa (80) (D) (0, 0) erhinoci Be bra of noowned ()) (E) (-13.5, 0) Windin 0a bas Or noowing (() 79. (** *) Find and interpret f-'(70) (A) f- (70) ~ 68.9. When the roast reached a temperature of 70F, it took 68.9 minutes. (B) f-(70) = 68.9. After 70 minutes, the roast reached a temperature of 68.9. F. (C) f-(70) ~81.1. When the roast reached a temperature of 70 F, it took 81.1 minutes. (D) f-(70) ~81.1. After 70 minutes, the roast reached a temperature of 81.1 F. () (E) f- (70) is undefined