Question

PLEASE HELP. WILL GIVE A MEDAL. SO CONFUSED.

Let A = {x | x < 5} and B = {x | x ≤ 7}

Find A U B.

Answer 1

A is contained in B since if a number is less that five it is certainly less than or equal to seven

Answer 2

so \(A\cup B=B\)

Answer 3

So would it be {x | x ≤ 7}?

Answer 4

yes

Answer 5

Thank you!