Choose all that correctly computes the unknown angle. ∠w = 31° ∠x = 149° ∠y = 31° ∠z = 90°

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1