Find A �¾ B, given A = {people who are less than 20 years old} and


12)

______

A)

{all people in the world}

B)

{people who are less than 20 years old and people who have a job}

C)

{people who are less than 20 years old or people who have a job}

D)

{people who are less than 20 years old and have a job}

To find A �¾ B, we need to determine the intersection (�¾) of set A and set B.

Given:
A = {people who are less than 20 years old}
B = {people who are less than 20 years old and people who have a job}

The intersection of two sets A and B, denoted by A �¾ B, consists of elements that are common to both sets.

To determine the intersection of sets A and B, we need to identify the common elements between them.

In this case, set B includes people who are less than 20 years old and people who have a job. Since set A only includes people who are less than 20 years old, all the elements in set A are also included in set B.

Therefore, the intersection of A and B, A �¾ B, is equal to A.

So, the answer is A) {all people in the world}.