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Leni [432]
3 years ago
9

I don't know how to do this. Please help. Ty! :)

Mathematics
1 answer:
Naya [18.7K]3 years ago
4 0

Step-by-step explanation:

A U B means all values containing in A and B.

Therefore A U B = {3,6,7,11,12,15} (C)

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Answer:

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Step-by-step explanation:

Parallel lines have the same slope.

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