Question 17 cos ¹(0.79) = degrees Answer has 1 decimal 38 0/2 pts Question 20 cos (cos-¹(2.5)) 2.5 pi - 2.5 undefined 0/2 pts ect ect Question 27 If a triangle has sides a = 5, b=7, c = 9 then angle A (opposite to side a) is Answer has 1 decimal 95.7 Question 28 The area of the triangle in question 27 is Answer has 1 decimal 33.6 degrees. 0/2 pts 0/2 pts