Let W(x, y) mean that student x has visited website y, where the domain for x consists of all students in your school and the domain for y consists of all websites. Express each of these statements by a simple English sentence.

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∃xW(x, www.imdb.org): "There exists a student who has visited website www.imdb.org ".

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(A∪B) c (A∪B)c
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4 What is the probability that an arrangement of a, b, c, e, f, g begins and ends with a vowel? 5 Helen wants to buy a bunch of flowers. There are five types of flowers available, namely roses, chrysanthemums, lilies, carnations and …
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For each of these relations on the set {1, 2, 3, 4}, decide whether it is reflexive, whether it is symmetric, whether it is antisymmetric, and whether it is transitive. {(2, 2), (2, 3), (2, 4), (3, 2), (3, 3), (3, 4)}
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Consider the following relation on set B = {a, b, {a}, {b}, {a, b}}: P = {(a, b), (b, {a, b}), ({a, b}, a), ({b}, a), (a, {a})}. Which one of the following alternatives represents the range of P (ran(P))? 1. {a, b, {a}, {a, b}} 2. …
Which one of the following relations represents the composition relation P ○ P (ie P; P)? 1. {(a, {a, b}), (b, a), ({a, b}, a), ({b}, {a}), (a, {a})} 2. {(a, {a, b}), (b, a), ({a, b}, a), ({b}, {a})} 3. {(a, {a, b}), (b, a), ({a, b}, …
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1. Assess whether the following undirected graphs have an Eulerian and/or a Hamiltonian cycle.
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How many distinguishable permutations with repeated elements are there for the number 20366650?
Let R be a relation on the set of all non-negative integers defined by aRb if and only if a3 - b3 is divisible by 6. Then
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How many distinguishable permutations with repeated elements are there for the number 20366650?
Let R be a relation on the set of all non-negative integers defined by aRb if and only if a3 - b3 is divisible by 6. Then

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Question ID: mtid-5-stid-8-sqid-1457-qpid-1195