Question

A = {1, 2, 3, 4, 5} and B = {3, 6, 9, 12, 15}, what is A U B?

{1, 2, 3, 4, 5, 6, 9, 12, 15}

{3}

{1, 2, 3, 3, 4, 5, 6, 9, 12, 15}

{ }

Answer 1

A U B means all the numbers in set A and set B

Answer 2

AUB is a set containing all the elements that belong to both A and B

Answer 3

Dose that help? @andrewj43

Answer 4

Yes so its A

Answer 5

yup right:)

Answer 6

The domain of the following relation: R: {(−4, 3), (3, 6), (−2, 1), (3, 6)} is

{1, 3, 6}

{−4, 3, −2, 3}

{−4, −2, 3}

No domain exists @ajprincess