If T = {integers} and subset W = {positive integers}, what is W′?

{1, 2, 3, …}

{…−3, −2, −1}

{−3, −2, −1, 0}

{ }

Question

If T = {integers} and subset W = {positive integers}, what is W′?

{1, 2, 3, …}

{…−3, −2, −1}

{−3, −2, −1, 0}

{ }

jim_thompson5910 · Answer

W' means "Not W"

so basically it's the set of numbers that aren't in W

jim_thompson5910 · Answer

So what numbers are in set T, but not in W

anonymous · Answer

The last one

jim_thompson5910 · Answer

so if you start with set T, and erase everything you find in W, you would get the empty set?

anonymous · Answer

I'm not sure on how to do this at all

jim_thompson5910 · Answer

T = {..., -3, -2, -1, 0, 1, 2, 3, ...}

jim_thompson5910 · Answer

W = {1, 2, 3, 4, 5, ...}

jim_thompson5910 · Answer

So you start with {..., -3, -2, -1, 0, 1, 2, 3, ...}

then you erase everything you find in {1, 2, 3, 4, 5, ...}

anonymous · Answer

Ohhh Gotcha It's the second one!

jim_thompson5910 · Answer

close..

anonymous · Answer

I'm sorry! Haha Thanks for helping me btw!

anonymous · Answer

and I'm going for c now

jim_thompson5910 · Answer

yep, C is right

0 isn't taken out

anonymous · Answer

Okay what about this one...

anonymous · Answer

Which of the following does not represent the set of even integers from 10 to 24?

{10, 12, 14, 16, 18, 20, 22, 24}

{even integers from 10 to 24}

{10, 12, 14 …,20, 22, 24}

{10, 12, 14, 16, …}

anonymous · Answer

would this one be the first one?