What are the domain and range of the step function below PLEASE HELP LEST TEST OF CLASS NEED ASAP ANSWER WILL GET 30 points

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.

What is the first step of an indirect proof of a number that is divisible by two

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9