Question

Let A = {1, 3, 4, 5, 8, 12}. The universal set is represented by U = {1, 2, 3, 4, 5, 6, 7, 8, 11, 12}. What is the smallest odd number in ~A?

Answer 1

I don't understand what ~A means.

Answer 2

~A means "The complement of A" or "Not A"

Answer 3

Okay thanks!

Answer 4

Yw :>

Answer 5

Let C be the set of some of Charlie’s friends.
C={Christian,Tyler,William,Ryan,Dylan}

Let J be the set of some of Jenny’s friends.
J={Abigail,Alyssa,Mia,Victoria,Natalie}

Which of the following is NOT an element of C×J?

Answer 6

What does that mean.. Idk why my teacher never went over this at the beginning of the year..

Answer 7

Basically it means that:

For example:

Y: {a, b, c, d}
Z: {1, 2, 3}
Find Y x Z

Y x Z: {(a, 1), (a, 2), (a, 3), (b, 1), (b, 2), (b, 3), (c, 1), (c, 2), (c, 3), (d, 1), (d, 2), (d, 3)}

There are 4 terms by 3 so there will be 12 terms in total. 4 * 3 = 12

Answer 8

Woahhh. That makes so much sense to me right now. I'm happy. Yay. EOC is Wednesday so thanks a lot!!!!!

Answer 9

EoC, you go to flvs too, huh! Have fun, goodluck! :D

Answer 10

Fun.. Definitely haha :) Thanks

Answer 11

<~(^_^)~>

Answer 12

Consider the following sets:
X= {1,3,7,8,12}
Y= {2,6,7,9,13}
Z= {3,6,7,12,13}

What is the smallest even number in X ∪ (Y∩ Z)?

Answer 13

Sorry to bother you xD I haven't studied until today though and I only have 2 days ..