Discrete Mathematics Explain Steps  If no two couples sit together, how many different ways may n couples sit in a row?  Derangement is a permutation of π ∈ Sn that has none of the fixed points, or The components are still in their first placement. How many different derangements of [n] are possible?

Q: How many elements will be there for A x B if A (a, b, c, d) and B= {1, 2, 3, 4} Select one: 0 6 0 2…

A: If a set A has m elements and a set B has n elements Then A×B has m×n elements

Q: 8. How many ways can a president of a committee and a vice president of a party be chose if the…

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Q: Combination Locks A combination lock displays 50 numbers.To open it, you turn clockwise to the first…

A: Solution: Let the p selections for the first choice q selections for the second choice and  r…

Q: estion 3. Let {An}nen. Prove that if for every nEN, BC An, then BCN An- nEN

A: The argument has been proved.Explanation:

Q: We can use a I to help identify all possible combinations.

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A: The given problem is to find the Laplace transform of the given time function.

Q: The permutations P = p and q in So have the two-line symbols 1 2 3 4 5 6 15 2 3 4 6 1 2 3 4 5 6 4 6…

A: We can find the given permutations in cycle form and order.

Q: 4. Given the set A={ 4, 6, 8} . Find R2 a. As if (a-b) is odd b. As if (a-b) is even

A: Follow the procedure given below.

Q: meetgLg M attend meeting together? A student is to answer 8 out of 10 questions on an exam. (a) how…

A: To calculate the number of choices under the three different conditions

Q: Find the nth term of the following 1.) 1, 4, 16, 64, . . . 2.) 3, 1, -1, -3, 3.) 2, 2 1/3, 2 2/3, 3,…

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Q: * Deter wine the hontontal and vert cal carmponents each force, Of (10k) Goku) Cokn)

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Q: A stockbroker dealt with 30 customers on a certain day. Of these , 12 bought and sold stock and 17…

A: Let A and B are two non empty sets.then A-B is called the difference of A and B and'A-B' contains…

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Q: How many rows appear in a truth table for the following compound proposition? (pv q) ^ (pn v (S M…

A: The given proposition is : p∨q∧p∧r∨s∨¬r To represent the given proposition , We will make the…

Q: Derangements. Given n letters and n addressed envelopes, in how many ways can the letters be placed…

A: Given n letters and n addressed envelopes, in how many ways can the letters be placed in the…

Q: 2. Determine the number of strings of length n consisting of the letters a, b, c, d in which there…

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Q: A&B&C&D&E

A: Hi! Thank you for posting the question. Since your question has more than three sub-parts, we have…

Q: (1) Suppose we draw a 4-card hand from a standard 52-card deck. A 4-card straight consists of 4…

A: The given data in this question is: A standard 52-card deck is used. A 4-card hand is drawn from…

Q: Tossing a coin four times in a row and getting HTHT, in what order

A: we know that, when a tossing coin four times then , total outcomes= 2^4                         = 16

Q: Both before and after a recent earthquake, surveys were conducted asking voters which of the three…

A: The contingency table shows the data from the survey.

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A: To find the total number of marbles in the bag, we simply add up the number of marbles of each…

Q: If m and n are positive integers with m <n and is a prime, then pmZpn is isomorphic to Zpn-m and…

A: If m and n are positive integers with m&lt;n and p is a prime, then we have to show that pmZpn is…

Q: The elements of order 4 modulo 29 are O 6 and 12 O 7, 14 and 21 O 12 and 17 None of the choices

A: To find elements of order 4 modulo 29, we shall check each of these given options one by one. We…

Q: FMA o Mebini, Devuo de Oro Quarter/Month: Score: Combination The number of combinations of z objects…

A: Here we have to explain the combinations of n objects taken r at a time :  In this example we…

Q: How many frienda should Ziad have on Facebook so that on a day of the year (366 days) he receives 6…

A: This question is about application of discrete maths

Q: 7. In the tennis tournament, each player of the "blue" team meets with each player of the "red"…

A: Permutation and combination

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Q: NOTE: This is a multi-part question. Onc submitted, you will be unable to return t As a reward for…

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A: I have assumed the first term of fibonacci sequence  to be 0.

Q: 1. Find the answer on the given sets below corresponding the operations (union, intersection and…

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Q: Events A and B are complements.  Which statement is false?    A. P(A) = 1 - P(B)   B. A and B…

A: event A and B are complement events. we have to find false statement.

Q: A company produces 4 different types of cookies. a) How many different boxes with 10 cookies is…

A: Follow the steps.