Answer: The elements that are NOT in Set M are 2, 5, 6 and 8.
Step-by-step explanation: We are given the Venn-diagram in the figure.
We are to find all the elements that are NOT in set M.
That is, we are to find the complement of M, given by
![M^\prime=U-M.](https://img.qammunity.org/2019/formulas/mathematics/middle-school/gtelft9wnpuhkt9dyfdfxl0iti9x9oepzn.png)
Now, the elements in the universal set U and the set M are
M = {3, 4, 7, 9} and U = {2, 3, 4, 5, 6, 7, 8, 9}.
Therefore, we get
![M^\prime=U-M=\{2,3,4,5,6,7,8,9\}-\{3,4,7,9\}=\{2,5,6,8\}.](https://img.qammunity.org/2019/formulas/mathematics/middle-school/zmz9a3w20dmz4x55i4gzwge5h6kme8mur0.png)
Thus, the elements that are NOT in Set M are 2, 5, 6 and 8.