An airplane at t(80,20)needs to fly to both u(20,60) and v(110,85). what is the shortest possible distance for the trip?
165 units
170 units
97 ubnits
169 units

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent. the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244