If a denotes some event, what does upper a overbar denote? if p(a)equals0.009, what is the value of p(upper a overbar)? if p(a)equals0.009, is upper a overbar unusual? what does upper a overbar denote? a. event upper a overbar is always unusual. b. event upper a overbar denotes the complement of event a, meaning that upper a overbar consists of all outcomes in which event a does not occur. c. events a and upper a overbar share all outcomes. d. event upper a overbar denotes the complement of event a, meaning that upper a overbar and a share some but not all outcomes.

Option  B) Event denotes the complement of event A, meaning that consists of all outcomes in which event A does not occur.      

Step-by-step explanation:

We are given the following in the question:

A denotes some event.

We have to define what does mean.

Complement of a event:

Thus, the correct interpretation is

Option  B) Event denotes the complement of event A, meaning that consists of all outcomes in which event A does not occur.

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

so what is the question

step-by-step explanation: