Question

H-E-L-P-!

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

\[X\cap Y\]

Answer 2

list everything that is in both sets, i.e. all odd whole numbers less than 10
there are not that many of them

Answer 3

0 1 3 5 7 9 ?

Answer 4

no

Answer 5

but close
0 is not odd

Answer 6

OH so 1 3 5 7 9 ?

Answer 7

yes

Answer 8

yay ! thx !

Answer 9

one more anyone ?