A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing

This Question is Closed

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1I got 0 idea how to solve this

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3You don't have to solve anything. It is is asking which of the below statements are true.

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1Or how to even see which statements are true. I got nothin'

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3Every set is a subset of itself.  Empty set is a subset of every set.  Other Example: If A={1,2,3} and B={1,2} B is a subset of A because A has all of B's elements. A is not a subset of B because B does not have all the elements A has.

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3So let's look at the first statement "W is a subset of Z" Do you think that is true?

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3Does Z have all the elements that W has?

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1It looks true to me!! All w are z, but not all z are w

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3Yep that statement is true. Integers={...,3,2,1,0,1,2,3,...} W={0,1,2,...} As we see the set of W is a subset of Z because W has the elements 0,1,2,... and these elements are also in Z. Now Z is not a subset of W because W does not have all the elements Z has.

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3Do you think the real numbers are a subset of the whole numbers?

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1That makes sense!! Thanks! :D Based on that, I think #2 is true All r is w, but all w is not r

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3Well the real numbers are definitely not a subset of the whole numbers.

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3The real numbers include numbers that aren't in the set of whole numbers like sqrt(5) and pi and so on...

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3Now you could say the whole numbers is a subset of the real numbers.

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1Oh i forgot! Silly me! I get confused very quickly. That makes sense to me!

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1What does the "e" mean on the next one?

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3I think your e there is suppose to mean an element of, but that isn;'t the traditional symbol for it that you are using.

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3dw:1387243116999:dw The symbol should look more like this.

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1Yeah, I used the standard keyboard symbol for the regular e. The e you drew is what it was suppose to look like :)

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3So that statement is asking you if you think that element 0 is in the set of integers

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3The integers are {...,3,2,1,0,1,2,3...} Do you think 0 is in that set?

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1Yup! Forever and ever and ever and ever and ever ....

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1In both directions :D

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3Those dots mean it continues on in both directions.. Good stuff. Okay so that one you say is true.

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3So do you know what that other symbol means in the next statement?

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1Hmmm... maybe it means like no value?

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1I saw it in the textbook, but they never told us what it meant They just started using it

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3\[\emptyset=\{ \text{ } \}=\text{ empty set } \] This basically means there are no elements contained within the set.

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3It is totally empty and no you do not say 0 is element of the empty set. There are no elements in the empty set not even 0.

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1But its apart of every set, right?

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3It is a subset of every set.

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1okay! So then would that make them true?

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1Cool! I didn't understand what the line under the c on the next one is

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1dw:1387243554944:dw

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3Like I'm saying that equal sign means they could be equal. Like they have the same exact elements in both sets.

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3Is that true? Are these the same sets?

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1Oh wait!!! I think they may be!

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3So what is the whole numbers then if it isn't {0,1,2,...}

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1there wouldn't be any

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3The whole numbers are defined for you in your problem

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1Isn't 0,1,2 etc whole numbers?

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3Yes so back to your question, dw:1387243864499:dw are these the same sets on both sides of that "weird symbol"?

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3that little line just means they can have all the exact same elements (talking about both sets; both sets can be exactly the same when you have symbol)

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1oh! So it's kinda like an equal sign (in a way)? If so, I think this is true

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3Yep It means it can be a subset of that set or subset of that set that is that set (or equal)

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3The last one, can you tell me the answer?

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1For the last one, i think it is false. 2 is not equal to W (a whole number)

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3You are right to say false. But doesn't say "2 is not equal to W" Say "2 is not en element of W" This just means the set W does not include 2 as an element.

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1Oh yeah! Because its the element that includes the entire w

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3People sometimes use this notation to say it is not an element of : dw:1387244283183:dw

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3They just put a mark through the sign that means an element of to say that it is not an element of

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1Thank you SOOOOO much for helping me out!

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1I really understand this now

myininaya
 one year ago
Best ResponseYou've already chosen the best response.3No problem. Cool stuff. I'm glad you do. May the force be with you in your future math studies!

PixieDust1
 one year ago
Best ResponseYou've already chosen the best response.1Thanks! Have an awesome day :D
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.