299 Answered Questions for the topic discrete mathematics

Discrete Mathematics Discrete Math Relations

2d

Relation Math Question

Let R = {(a,b)∣a divides b} be a relation on the set {Z}^+Which of the following statements are correct? Tick all the corresponding answers.a) R ⊆ Z^+ × Z^+b) R is reflexive.c) R is... more
Discrete Mathematics Calculus Discrete Math

7d

An employee joined a company in 2019 with a starting salary of 120,000 Dhs per year. Every year this employee receives araise of 5% of the salary of the previous year.

a.    Set up a recurrence relation for the salary of this employee. (Open formula)b.    Find an explicit formula for the salary of this employee n years after 2019. (Closed formula)c.     What... more
Discrete Mathematics Calculus Discrete Math

7d

How many permutations of the letters STUVWXZA contain the strings UVW or ST?

I need an answer to this question ASAP!
Discrete Mathematics Calculus Discrete Math

7d

How many bit strings of length 15 contain at least three 1s and at least three 0s?

I need an answer to this question ASAP!
Discrete Mathematics Discrete Math

16d

Proof Maths Help

For the following claimed logical equivalence, determine whether it is true or false. Give a proof if it is true, and give a counterexample if it is false. ∀xP(x)∨∀xQ(x)≡∀x(P(x)∨Q(x))
Discrete Mathematics Math Calculus Discrete Math

27d

word problem question below, please show workings.

A system development project calls for five different tasks to be assigned to Maria, Jon, and Suzanne. In how many ways can the assignment be done if each of the three workers must get at least one... more
Discrete Mathematics Math Discrete Math

27d

prove that [x] + 1 = [x + 1]

prove that [x] + 1 = [x + 1]
Discrete Mathematics Discrete Math

10/19/21

Partial Order Relations

Let A = Z. Let R be defined on A × A where xRy if x ≤ y . Prove that R is a partial order relation.
Discrete Mathematics Geometry Discrete Math

10/17/21

How do you prove Binet's Formula for Fibonacci Numbers using mathematical induction?

The Fibonacci numbers form the sequence 1, 1, 2, 3, 5, 8, 13, 21, 34, ...where F1 = 1, F2 = 1, FN = FN-2 + FN-1.Binet's Formula is:FN = ([(1+√5)/2]N - [(-1+√5)/2]N)/√5
Discrete Mathematics Computer Discrete Math Computer Science

10/08/21

find x if 283(x)=A2(16)-153(80)+100110(2) discrete mathematics

i really ned help with this problem i'm in discrete mathematics and i don't know where to begin
Discrete Mathematics Statistics Discrete Math Probability

08/19/21

Expected Value question: If E (Y) = 6, then E (6Y - 4) =

If E (Y) = 8, then E (6Y - 4) =
Discrete Mathematics Statistics Discrete Math Probability

08/19/21

Variance question: If V (Y) = 6, then V (2Y- 4) =

If V (Y) = 6, then V (2Y- 4) =
Discrete Mathematics Statistics Discrete Math Probability

08/16/21

Law of Variance question: If V (Y) = 12, then V (4Y - 8) :

If V (Y) = 12, then V (4Y - 8) ?
Discrete Mathematics Math Discrete Math Mathematics

08/11/21

Discrete Math (Urgent)

Question : Suppose that A and B are finite sets. Prove that A × B is finite.Book : Set Theory (0th)-CunninghamChapter 5.1 and problem number 20 and page no. 116
Discrete Mathematics Math Discrete Math Mathematics

08/11/21

Discrete Math (Urgent)

Question : Suppose that f : A → B is onto B where A is finite. Prove that B is finite.Book :... more
Discrete Mathematics Math Discrete Math Mathematics

08/11/21

Discrete Math (Urgent)

Let A be a finite set. Prove that there exists an f : n → A that is onto A for some n ∈ ω.
Discrete Mathematics Math Discrete Math Mathematics

08/11/21

Discrete Math Question (Urgent)

Let n ∈ ω. Suppose that f : n → A is onto A. Prove that A is finite.
Discrete Mathematics Discrete Math

07/27/21

discreate mathmatics

Express the following English statement using quantifiers and find out the negation of the quantifiedexpression. Convert the negation of the quantified expression into English statement.“All the... more
Discrete Mathematics Math Logic Sequences

05/26/21

provide a simple formula or rule that generates the terms of an integer sequence

For the lists of integers, provide a simple formula or rule that generates the terms of an integer sequence that begins with the given list. Assuming that your formula or rule is correct, determine... more
Discrete Mathematics Discrete Math

05/06/21

We are doing this new topic in discrete math and I need this one question done

https://imgur.com/a/pVUaDfxSorry I couldn't write up the question its really complex to write and there was no picture upload option so here is the question^. I do need help as soon as possible... more
Discrete Mathematics Math Statistics Discrete Math

04/23/21

In a drug study of a group of 500 patients, 150 patients responded positively to drug #1, 200 patients responded positively to drug #2 and 90 patients responded positively to both drug #1 and drug #2.

8. In a drug study of a group of 500 patients, 150 patients responded positively to drug #1, 200 patients responded positively to drug #2 and 90 patients responded positively to both drug #1 and... more
Discrete Mathematics Discrete Math

04/23/21

...what is the probability that two women and a man will give presentations on the second day?

A graduate class in computer science consists of six students, three men, and three women. During the last two days of the semester, presentations are made by the students, three presentations on... more

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