161 Answered Questions for the topic Sets


Question on probability/sets

You have a basket containing 7 red balls, 5 green balls, and 2 orange balls. You pick 5 balls at random. What is the probability of getting at least one red ball?

Struggling on this problem retaining to sets

Let the Universal Set, S, have 100 elements. A and B are subsets of S. Set A contains 45 elements and Set B contains 61 elements. If Sets A and B have 20 elements in common, how many elements are... more


What is A' ∩ (B-C)?

Let A = {1,2,3,6,7} B= {2,4,5,7} and C = {2,4,6} and U = {1,2,3,4,5,6,7,8}a. {6}b. {5}c. {}d. none of theseI have answered B. {5} am I correct?

Relation Maths Question

Prove that the relation ℝ ={(a,b) | a divides b} {Z}^+ is not an equivalence relation. ( 4 marks )

Find the union and intersections of sets B and C using interval notation.

I am completely lost. Please help:B = w <= 3C = w < 7
Sets Math


Set Problem that I can't solve

A ∈ B, B ⊆ C, C ∈ D is A ⊂ D?


Negation with quantifiers

Q. Write down the negations of the following statements: a. Every news site reported on the Winter Olympics. b. There is some real number which is larger than any integer. c. For all nonzero real... more


Which of the following is always true for any function with domain 𝐷, codomain 𝐶 and range 𝑅?

1)R⊆C2)R⊆D3)R = C 4)R = D


How many elements are contained in the set (1,5) \ {1}?

How many elements are contained in the set (1,5) \ {1}?


how to find these sets?

U= {a,b,c,d,e,f,g}A= {c,d,e,f}B= {d,e,g}what is:1. A'2. B'3. A∪B'4. B∩C'

Logics, Sets, Karnuagh Maps, Boolean Logic Customer Reviews

Let the universal set U be the following set of 16 countries:  U = {Angola, Benin, Chad, Djibouti, Eritrea, Ghana, Kenya, Libya, Mali,           Namibia, Rwanda, Sudan, Tanzania, Uganda,... more


All the sets possible

I can eat at USA, France and Italy i can eat at some all or none what are all the sets


If A intersection B' is null set prove that A is subset of B

About sets identities and proof of sets
Sets Algebra 2


How to rewrite, having trouble.

How to rewrite set G using elements G= y|y is an integer and 3≤Y<5
Sets Algebra 1


what is the subset of (1,3,5,7,and,9)

Sets Algebra 1


Algebra and sets math problem

Suppose A = {x |x ≤ −2, x ≥ 3} and B = {x | −1 ≤ x < 5}. Which statement is true? A.-A ∪ B is all real numbers B.-A ∩ B = ∅ C.-A' = {x | −2 ≤ x ≤ 3} D.-B ⊆ {x | x ≤ 5} NEED ANSWER QUICK


What are two different signs for sets ?

What are two different kinds of sets 


Sets of whole numbers greater than 8

Indicate the the following set by the listing method.  Whole numbers greater than 8  


A and B are disjoint sets and n(A)=6, number of elements in the union of the power sets of A and B is 71 find n(a union b)

N(a) represents the no. Of elements in set a 


n(A intersection B) =0. I want to ask what the n here means

and if we’re given with a statement of union or intersection with this n then how do we find the conditio? Thank you  


Question from chapter sets please answer it

In a group of 34 children each one play cricket or hockey or both of 16 can play criçket and 12 can play cricket only find how many play hockey only

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