188 Answered Questions for the topic Sets

04/01/22

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?
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04/01/22

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
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03/18/22

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?
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11/29/21

Relation Maths Question
Prove that the relation ℝ ={(a,b) | a divides b} {Z}^+ is not an equivalence relation. ( 4 marks )
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09/08/21

5. Given U = {1, 2, 3, 4, 5, 6, 7, 8, 9}, A {2, 4, 6, 8}, B {1, 3, 4, 5, 7} C= {7, 8} find:
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05/29/21

Find the union and intersections of sets B and C using interval notation.
I am completely lost. Please help:B = w <= 3C = w < 7
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Sets Math

05/02/21

Set Problem that I can't solve
A ∈ B, B ⊆ C, C ∈ D is A ⊂ D?
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03/20/21

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
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11/19/20

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
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11/19/20

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

09/04/20

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'
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05/12/20

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
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Sets

05/02/20

find complement of A if U={1,2,3,4,5,6,7,8,9,10} A={2,4,6,8} B={1,3,5,7}
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Sets

01/18/20

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
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Sets

08/19/19

If A intersection B' is null set prove that A is subset of B
About sets identities and proof of sets
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Sets Algebra 2

07/14/19

How to rewrite, having trouble.

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

06/07/19

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

04/26/19

If there are 340 readers in a village and 700 males and 200 such people who are male readers find the total population of the village who is either a male or a reader
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Sets Algebra 1

12/12/18

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
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10/26/18

ii. How many three-letter codes are there using letters A, B, C, and D if no letter can be repeated?
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09/28/18

How to Make a Venn Diagram for the Following Set Notations?
(a) Complete the Venn Diagram to show the sets A, B, and C :   1. C ⊂ A 2. B ∩ C = ∅ 3. n( A ∩ B ) = 3 4. n( B ∪ C ) = 19 5. n(B) = 15 6. n( A ∪  B ) = 23   (b) Hence, state n( A ∩ B' ∩ C'... more
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Sets

09/02/18

What are two different signs for sets ?
What are two different kinds of sets 
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Sets

08/17/18

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

07/16/18

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 
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07/05/18

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  
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