Answer:
Required probability equals 0.18%
Step-by-step explanation:
The probability that the primary and one auxiliary computer fails equals
1) Probability that A and B fails
2)Probability that A and C fails
Thus required probability equals

Answer:24
Step-by-step explanation:
0.5 is half to get a whole 12x 2 =24
Number 1 is x=8!!
2 is pretty confusing so I hope someone else can answer two as I have answered 1!
-1/2 + 2 = 1.5
because if u add 2 to a minus half it goes 0 and then 1.5 (positive half)