Question

If N = {positive integers} and subset C = {positive odd integers), what is C′?

{2, 4, 6, 8, …}

{ }

{0, 1, 2, 3, 4, …}

{1, 3, 5, 7, …}

Answer 1

is 2 a positive odd integer?
Is 0?
Can you name at least one positive odd integer?

Answer 2

subset of C, is what is missing on C that is on N

Answer 3

subset c is all positive odd integers so
C have to be all positive even integers due that
N is all positive (odd and even) integers

Answer 4

so its D?

Answer 5

no D, is the positive odd integers which is the subset C
the question is what is C

Answer 6

so it would be C?

Answer 7

no, it is D
C = {positive odd integers} , not choice "C"

Answer 8

just read my explanation to see if you can understand

Answer 9

thats what i said first?

Answer 10

is not C or D

Answer 11

i dont get it

Answer 12

Just an example to see if you can understand, I have the following
N = {ball, pen, hat, pencil}
subset C = {ball, pen}
what is C so C have to be what is on N but missing from subset C, in this case
C = {hat, pencil}

Answer 13

Now you have
N= (all positive (odd and even) integers
subset C = odd integers what is C

Answer 14

wow this is hard

Answer 15

i give up

Answer 16

what is the opposite of odd

Answer 17

evem

Answer 18

ALRIGHT, so what are the even positive numbers

Answer 19

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

Answer 20

correct, so that is the answer

Answer 21

if the subset "C" have the odd positive integers then "C" have the even positive integers, because N = positive "EVEN" and "ODD" integers

Answer 22

ohh

Answer 23

set C or choice C? set C does not have the even positive integers in it as described above!

Answer 24

I think you are confused

Answer 25

set C, is just the letter they chose, it could have been set Z, or X it have nothing to do with the answers

Answer 26

subset C is the set of positive odd integers! How can even integers be in this set? someone is smoking crack!

Answer 27

look above!

Answer 28

just because subset C is positive odd integers, is why C is positive even integers, and no I do not do that

Answer 29

Did you look at N, or that is there just for beauty information

Answer 30

here is the set of odd positive integers: {1, 3, 5, ...}
here is the set of even positive integers: {2, 4, 6, ...}

here is the set of positive integers (called N above): {1, 2, 3, 4, ...}

C, the set of odd positive integers, is defined as a subset of N.

N contains C, that is why it is a subset.

Answer 31

You're thinking of the Complement of C that is in N. That would be the even positive integers.

Answer 32

amistre64 , can you clarify

Answer 33

what pgpilot said is what i agree with. I don't agree with anything above that.

If you have a set, the sub set will contain anything that is from the set but not the whole set.

Answer 34

Do you know the answer ?

Answer 35

@amistre64

Answer 36

@timo86m

Answer 37

idk

Answer 38

@ivettef365 have a look

https://en.wikipedia.org/wiki/Subset

Answer 39

I don't agree because I am sure. I don't believe that the problem is defining it like that. I have interpreted the problem as there is a set N = {positive integers} and there exists a subset C={positive odd integers}. There is no difference between the set C or the subset C in this context.
Assuming you were right, if there was a Set C and there existed a subset of C, then the subset would need to consist of positive odd integers.

Answer 40

I wanna say D

Answer 41

If N = {positive integers}: {1,2,3,4,5,6,7,8,9,10,11, ... }

and subset; (subset means its contains elements of N, or null)
C = {positive odd integers): {1,3,5,7,9,11,13,...}

what is C′: well, since an even number is not an odd number, id say its the positive even integers.

Answer 42

my eyes must be geyying bad... is there a prime on the C?

Answer 43

yes it is

Answer 44

did you have any primes in your responses? I apologize, but I didn't see any in the original or your responses until amistre mentioned it.