161 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?

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

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?

11/29/21

#### Relation Maths Question

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

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:

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

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

Sets Precalculus

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

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}?

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'

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

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

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

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

Sets Algebra 1

06/07/19

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

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

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

10/26/18

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

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

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

#### 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

Sets

07/05/18

#### 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

## Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.

Most questions answered within 4 hours.

#### OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.