Answer
$2$
Work Step by Step
Consider $M=${$2,3,4,5$} and $N=${$1,3,5,9$}
The common or mutual elements between two sets defines the intersection between them.
Thus, Common elements are: $(3,5)$
Number of elements: $2$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 9 - Quadratic Functions and Equations - 9-5 Completing the Square - Standardized Test Prep - Page 566: 53
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