I would say it equals 4 because if x=-4 than -x should equal 4 i may be wrong though
Answer:
Follows are the solution to this question:
Step-by-step explanation:
Technician selects three out of 5 systems
In C(5,3)=10ways, this can be achieved
In part a:
Space sample chooses 3 of a 5 systems



In point b:
A =MODULE WHICH INCLUDE M1 minimal amount of effort
Outcomes probable =



In point c:
B = highest effort that is 
Potential result=



In point d:



In point e:



In point f:


In point g:


In point h:
