Question 19 (5 points) 3- (-3) + 7 - 4 = O A) 14 OB) 2 OC) 12 OD 9

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.

Can someone me and do the problem plz so i can understand it more better

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11