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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.

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?