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44 Answered Questions for the topic Set Theory

04/20/17

Dont understand natural number+ symbol. what does it mean

I know and understand what natural numbers are, but what does it mean when the natural number symbol has a + at the top, in the position the squared number would be. Can't seem to find information... more

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Set Theory

03/21/17

Of 540 students, 335 like hamburgers and 287 like hotdogs. 220 like both.

1. How many students don't like either? 2. ~hamburgers=

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Set Theory

03/21/17

In a survey 113 business executives were asked if they regularly read the Wall Street Journal, Business Week, and Tampa Bay Times.

87 read Journal, 74 read Business, 88 read Times, 56 read Journal and Business, 55 read Business and Times, 67 read Journal and Times, 42 read all 3. 1. How many read only the Wall Street... more

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Set Theory Venn Diagram

01/28/17

U = {1,2,3,4,5,6,7,8,9} A={1,3,5,7,9} B= {1,2,3,4,5} C = {1,2,5,8,9} what is AUB' = . and what does A'n C = and what is A U A'

how do i solve this

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Set Theory Math Discrete Math Sets

01/27/17

Discrete Math / Set Theory - Proof

Hi I have 2 problems that I need to say whether or not they are true or not and then write a proof for my answer. I am really struggling and could use a little help thank you 1) (X ⊆ Y... more

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Set Theory

01/18/17

Is it possible to find different combinations of subsets which cover the original set?

for example if A = {a,b,c} then all possible subsets are {a}, {b}, {c}, {a,b}, {a,c}, {b,c},{a,b,c} and combinations of subsets which cover the original set are: {{a},{b,c}} and {{a},{b},{c}} and... more

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Set Theory

12/12/16

What is the set of northeastern states NE ?

thats pretty much it

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Set Theory

12/12/16

Think about R the set of real numbers. Are there any exceptions for any of its subsets being uncountable? If they exist, what are they?

Professor says this question is a lot simpler than I think

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Set Theory

12/12/16

Show that a subset with K elements has 2^k possible subsets

set theory

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Set Theory

12/12/16

Let's say you have your email has a set total of 315 total messages how many subsets can you possibly create

This is a set theory problem my teacher say its easier than I think but I don't understand.

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Set Theory Number Theory Abstract Groups

11/29/16

principal ideal ring

Suppose thatR=R1⊕R2⊕…….⊕Rnwhere each Ri is a principal ideal ring. Verify that R is also a principal ideal ring. please I want help with that

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Set Theory

09/06/16

Let A and B be subsets of U, n(U) = 100, n(A union B)' = 37, n(B-A)=40. Find n(A).

I can't find an example of how to solve when n(A) and n(B) are not given. Please help.

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Set Theory

08/24/16

i have deficulty with this three questions that I need to solve and really need help as soon as possible

Let U={w, x, y,1, 2, 3} , A ={2, y} , B = {x, y, 3}, C ={w, y,1} Find AU B' Find n(B-A) find AXB

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Set Theory

05/08/16

Let ?= {a, b, c, d, e, f, g}, A= {a, b, c}, B= {c, d} Find A?B

Find AUB. What is the answer

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Set Theory College Algebra Complex Numbers Real Numbers

02/19/15

Is a set of complex numbers bigger than or smaller than the set of real numbers

Is a set of complex numbers bigger than or smaller than the set of real numbers?

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Set Theory

02/04/15

Set of real numbers

Can I say that the set of real numbers less than 1 and greater than 10 is the empty set?

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Set Theory

11/06/13

Out of 250 students who failed in an examination, it was revealed that 128 failed in mathematics,87 failed in physics and 134 failed in chemistry.31 failed in

maths and physics,54 failed in chemistry and mathematics,30 failed in chemistry and physics.find how many candidates failed in: [a]in all the three subjects.[b]in mathematics but not in physics.[c]... more

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Set Theory

10/24/13

how set theories are relevant to real-life situations.

How you can apply this knowledge to teaching math? How you can help a struggling student master math concepts using set theories?

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Set Theory Probability Sets Venn Diagrams

03/13/13

how do i find the number of elements in this set??

I have this question regarding set theory and probability that i am struggling on: Q: A group of international students take part in a survey on the nationality of their parents.E= English... more

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