Question

{x|x E and x is a multiple of 5 }

Answer 1

what does E stand for?

Answer 2

it means it's an element of

Answer 3

so it is supposed to be "\(\in\)"?

ok, x is an element of what?

Answer 4

natural number? integer?

Answer 5

doesn't say, that's all that is given

Answer 6

it just says \(\{x \mid x\in \text{ and }x\text{ is a multiple of }5 \}\)?

Answer 7

this makes no sense

Answer 8

sorry it says {x | x E N and x is a multiple of 5 }, I forgot the "N"

Answer 9

then the set is \(\{5,10,15,20,.....\}\)

Answer 10

what is the question

Answer 11

what is the following set in roster form

Answer 12

Ok then it is what I listed

Answer 13

so that just means to write the multiples of 5? so what does {y | -6 < y < 4 and y is an integers } ? does that mean write the numbers -6 to 4?

Answer 14

yeah in set brackets like I did.

Answer 15

Roster means list them

Answer 16

note the list would not include -6, and 4

Answer 17

so it would be -5 to 3 then?

Answer 18

\(\{-5,-4,-3,-2,-1,0,1,2,3\}\)

Answer 19

the brackets are very important

Answer 20

notice that if they change the integers to real numbers then you could not do that, because you cant list the real numbers

Answer 21

one more question, I must go to sleep

Answer 22

I think I got it, thanks a bunch

Answer 23

np

Answer 24

if you are here on another day doing set stuff, feel free to tag me. I love set stuff.

Answer 25

will do