Auniversal set contains only sets a and b. if a∩b = ø and a and b are not the empty set, then all of the following are true except

a and b are disjoint.
a is equal to b complement.
a∪b={}
a is not a subset of b.

step-by-step explanation:

the options are kind of confusing. i can tell you what i see going on here when i look at the graph.

the class and exam medians are closely related, and it looks like the low outlier on the exam did pull the median lower. [tex][/tex]

just do 5.2 + 2 ( 7.2) and 1/3 x 3 (.9) and youv'e got your equation. 0.9( 9/10) + 7.2 ^2 = 16.4 hope i could !

step-by-step explanation: