Question

Let X = {x|x is a whole number less than 10} , Y = {x|x is an odd number}

What is X *upside down U* Y

A) {1,2,3,4,5,6,7,8,9}
B) {0,2,4,6,8}
C) {1,3,5,7,9}
D) {0,1,2,3,4,5,6,7,8,9}

Answer 1

\(X\cap Y\) is the set of elements such that each element is in both sets.

Answer 2

so the set of odd whole numbers less than 10

Answer 3

0 is even...

Answer 4

ok and ? lol

Answer 5

so 0 1 3 5 7 9 ?

Answer 6

not 0

Answer 7

0 is even \(0/2=0\in \mathbb{Z}\)

Answer 8

I got this one, its 1 3 5 7 9 ?

Answer 9

correct, but put it in a set \(\{1,3,5,7,9\}\)

Answer 10

right THX !

Answer 11

intersection of sets is a set, not just a list:)

Answer 12

np