Question

The range of the relation below is

x y
−1 10
2 10
5 4
0 3

{3, 4, 10}

{−1, 0, 2, 5}

{10, 10, 4, 3}

No range exists.

Answer 1

need help please

Answer 2

the range would be all the y value. Also, in a set we never list an element twice and the order does not matter.

Answer 3

so which one is it>?

Answer 4

10 4 3

Answer 5

:)))

Answer 6

so which one is that? in the list? if we know the order does not matter?

Answer 7

the first one

Answer 8

great

Answer 9

and aslo this one too

Answer 10

If W = {1, 2, 3, 4 …} and subset Z = {positive odd integers}, what is Z'?

{1, 2, 3, 4 …}

{ }

{5, 6, 7, 8 …}

{2, 4, 6, 8, …}

Answer 11

well its going to be all the things in W that are not in Z, so what numbers are those?

Answer 12

2 4 6 8

Answer 13

2,4,6,8,10,.....

Answer 14

yea

Answer 15

so the set of even positive natural numbers, so whcih one is that in the list?

Answer 16

the last one

Answer 17

correct

Answer 18

thxs n aslo this one please im your big fan

Answer 19

If C = {integers divisible by 2 from 1 to 12} and D = {integers divisible by 4 from 1 to 16}, what is C ∩ D?

{4, 8, 12}

{2, 4, 6, 8, 10, 12, 16}

{8, 12}

{ }

Answer 20

your doing the work

Answer 21

okay

Answer 22

ok its going to be the elements that are in both sets
so set 1 = ?(make a list)
and set 2 = ? (make a list)

Answer 23

list 1 2 4 6 8 10 12
list 2 : 4 8 12 16

Answer 24

is 1 divisible by 2?

Answer 25

o nm i c, that lsit 1

Answer 26

sorry

Answer 27

u r okay

Answer 28

ok so what elemnts are in both?

Answer 29

4 8 12

Answer 30

and this is what one in the lsit/?

Answer 31

the first one

Answer 32

correct

Answer 33

can you keep helping me please thank you very much

Answer 34

sure

Answer 35

Let A = {1, 2} and let B = {3, 4, 5}. Find A X B.

{1, 2, 3, 4, 5}

{(1, 3), (1, 4), (1, 5), (2, 3), (2, 4), (2, 5)}

{ }

{1, 2}

Answer 36

this time tell me what you think your first step should be

Answer 37

what does A cross B mean?

Answer 38

umm hold up one second let me think

Answer 39

hint: think different combonations

Answer 40

is it like cross product

Answer 41

OK my dad needs my help, but A cross B means all the different combonations of the two x and y values as sets. so we can have (1,3), (1,4),(1,5),(2,3)...you see how I jsut start with the 1 and do all combos of hte y values with 1 and then start with 2 and all values of y values with 2 as x, dont think about the cross product you know before. I dont think it helps to think of it like that. Just know its all the combonations you can make with the two sets given. And this is always an ordered pair, so it will be a set of ordered pairs. bbiab

Answer 42

okay kinda of hard wat jux told me

Answer 43

but i try to figure out

Answer 44

you got it?

Answer 45

its the second one