Answer:
[tex]\begin{gathered} C\text{ }\cup\text{ D =(}-\infty,2)\text{ U (9, }\infty) \\ C\text{ }\cap\text{ D= }\emptyset \end{gathered}[/tex]
Step-by-step explanation.
To determine the set that defines the intersection and union of C and D, we must make a number line:
Therefore, for C U D:
[tex]\begin{gathered} C\text{ }\cup\text{ D =(}-\infty,2)\text{ U (9, }\infty) \\ C\text{ }\cap\text{ D= }\emptyset\text{ }\rightarrow\text{ It is empty, they do not intersect with each other.} \end{gathered}[/tex]
