6. If |x| = 13, [y| = 19, and |x - y| = 22, find |x + yl. Include the diagram and show all the steps. 7. Find x, y and z if 2(x, -1,4) - 3(-4, y,6) - (4, -2,2) = (0,0,0). 8. Find a and b such that u = at + 2j, and # = -37 - 6/ - bk are collinear.A cruise ship's captain sets the ship's velocity to be 26 knots at a heading of 080. The current is flowing toward a bearing of 153 at a speed of 8 knots. a) Draw a vector diagram of this situation. b) What is the ground velocity of the cruise ship