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

Pls i’m too dumb to know what i’m doing right now

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.