888 Answered Questions for the topic discrete math

Discrete Math Math Computer Science

09/27/20

Need some help with my discrete Mathematics Homework, converting statement

Consider the following statements.    1. When I work a logic example without grumbling, you may be sure it is one I understand.    2. The arguments in these examples are not arranged in regular... more
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09/22/20

Discrete Math - Permute letters question
How many ways are there to permute the letters in HAPPY?
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09/21/20

Please help with this question!
In each of the following, decide whether the given quantified statement is true or false (the domain for both  and  is the set of all real numbers). Provide a brief justification in each... more
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09/21/20

Please help with this question!
In each of the following, decide whether the given quantified statement is true or false (the domain for both  and  is the set of all real numbers). Provide a brief justification in each... more
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Discrete Math Math Maths Mathematics

09/21/20

Discrete Math Counting Question
How many 10-digit telephone numbers (that is, length-10 sequences with entries from ) are there for which no two adjacent numbers are both even or both odd?I calculated 14400 from 5! * 5! but this... more
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09/21/20

Please help with this question!!!
Negate the following statement:                  Is the negation true or false? Briefly justify your answer.
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09/21/20

Please help with negation of this question!!!
Negate the following statement:                  Is the negation true or false? Briefly justify your answer.
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Discrete Math

09/21/20

Write a proof by contradiction for S as a free response. Original Question Prompt in Description.
Let S be the statement: The reciprocal of any irrational number is irrational. (The reciprocal of a nonzero real number x is 1/x.)Q: Which of the following is a negation for S?A: There is an... more
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Discrete Math

09/21/20

Write a proof by contraposition for S as a free response. Original Question Prompt in Description.
Let S be the statement: The reciprocal of any irrational number is irrational. (The reciprocal of a nonzero real number x is 1/x.)Q: Which of the following is the contrapositive of S?A: If the... more
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Discrete Math Probability

09/20/20

How many ways can you rearrange the letters of the word OPTICAL so that the vowels are all next to each other?
How many ways can you rearrange the letters of the word OPTICAL so that the vowels are all next to each other. For example OIAPTCL?
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Discrete Math Combinatorics

09/20/20

A restaurant serves 10 different varieties of soup one of which is mushroom soup. In how many ways can we order six plates of soup if…
A restaurant serves 10 different varieties of soup one of which is mushroom soup. In how many ways can we order six plates of soup if (a) exactly four plates must be mushroom soup (b) at least four... more
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Discrete Math

09/19/20

Identify the errors in the proposed proof. Look at Selections in Description below and select all that apply. What is the correct answer?
Consider the following statement. 3√(2) − 7 is irrational. This statement is true, but the following proposed proof by contradiction is incorrect.Proposed proof:Suppose not. That is, suppose 3√(2)... more
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Discrete Math

09/18/20

Write 6! in standard factored form.
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09/18/20

Please help with negation!!!
The negation of the sentence "If the product   is even, then  is even or  is even" is?
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Discrete Math

09/18/20

Compute ⌈x⌉ and ⌊x⌋ for the following value of x. 86.999
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Discrete Math

09/18/20

Show that the following number is rational by writing it as a ratio of two integers. 3.8057
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09/18/20

Please help with this question!
Prove if it is tautology (p→q) ∨ [(p ∨ ¬q ∨ p) ∨ ¬r)] with the use propositional laws. *please use the propositional laws to prove this.
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09/18/20

Please help with this question!
Prove if it is tautology(p→q) ∨ [(p ∨ ¬q ∨ p) ∨ ¬r)] with use propositional laws.
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09/18/20

Please help with the negation of the following question!!!
What would be the negation of the statement ?
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Discrete Math Math Calculus Linear Algebra

09/18/20

Please help with the following question!!!
Which of the following quantified statements is (are) true? Let the domain for  be the set of all real numbers.[Note: There may be multiple correct answers!]a.) b.) c.) d.)  e.) f.)
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09/18/20

Please help with predicate!!!!
If the domain is  - the set of all integers (i.e.,  ), then the predicate    is TRUE for all of the following values of :a.) No values of in this domain make the predicate trueb.) - this is the... more
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Discrete Math

09/12/20

Can someone help me with this Discrete Math Problem?
For the two numbers given below, which are rational, and which are irrational? Express those which are rational in the form p q with p, q ∈ Z. a. 0.a1a2a3..., where for n = 1, 2, 3, ..., the value... more
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09/12/20

Discrete Math: Sets and Cardinality
Find the cardinality of each indicated set. Assume Ν0={0,1,2,3...}A = {n∈Ζ ; |n| < 84} |A| = ?B = {n∈A ; n=3m for some m∈Ν0} Note that A is the set defined above.|B| = ?I'm kind of confused with... more
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Discrete Math Propositional Logic

09/07/20

Write the truth table of each proposition
1. p ∧ q ′ 2. (p ∨ q) ∧ p ′ 3. (p ∧ q) ∨ (p’ ∨ q)
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Discrete Math Discrete Mathematics

09/06/20

Discrete Mathematics Questions
Discrete Mathematics Questions
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