having difficulty with especially 15. one

and Co, 0. 4-10 1 15. A pilot flies at 300 km/h with a heading of 110". A 30 km/b wind comes from 260 Find the bearing and speed of the plane's resultant travel, [5 marks] 16. Determine the values of b so that 1- 13k. k + 10, 13 and 1 = k 5, k. 1) are orthogonal. [3 marks] 17. Given the equations , 1/, 2| 7, 15, 4 and [r, y, 2 15, -26, 23] + 15, 1, 3 a. Identify whether the equations represent lines or planes. How do you know? [2 marks] b. Solve the system of equations to find the point of intersection. [5 marks]