Question

use the given venn diagram, which shows the number of elements in regions i through iv to answer the following question. how many elements belong to set a and set b? the number of elements in a and b is \boxed{}

Explanation:

Step1: Identify the region for \( A \cap B \)

The intersection of sets \( A \) and \( B \) (denoted as \( A \cap B \)) is represented by the overlapping region (region II) in the Venn diagram.

Step2: Determine the number of elements in \( A \cap B \)

From the Venn diagram, the number of elements in region II (the intersection of \( A \) and \( B \)) is given as 30.

Answer:

30