SSS1 Math Quiz 6.5 – Union and Intersection

What is the union of two sets?

The set of elements that are common to both sets

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The set of all elements in both sets combined

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The set of elements that are unique to each set

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The empty set

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Which symbol represents the union of sets?

∩

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∪

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⊆

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⊂

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If A = {1, 2, 3} and B = {3, 4, 5}, what is A ∪ B?

{1, 2}

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{1, 2, 3, 4, 5}

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{3}

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{4, 5}

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What is the intersection of two sets?

The set of elements that are common to both sets

Correct Incorrect Correct answer

The set of all elements in both sets combined

Correct Incorrect Correct answer

The set of elements that are unique to each set

Correct Incorrect Correct answer

The empty set

Correct Incorrect Correct answer

Which symbol represents the intersection of sets?

∩

Correct Incorrect Correct answer

∪

Correct Incorrect Correct answer

⊆

Correct Incorrect Correct answer

⊂

Correct Incorrect Correct answer

If A = {1, 2, 3} and B = {3, 4, 5}, what is A ∩ B?

{1, 2}

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{3}

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{4, 5}

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{1, 2, 3, 4, 5}

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What is the cardinality of the union of two sets A and B if |A| = 3 and |B| = 4?

7

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3

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4

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Cannot be determined

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What is the cardinality of the intersection of two sets A and B if |A| = 5 and |B| = 3?

2

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3

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5

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Cannot be determined

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If A ∩ B = A, what can you conclude about sets A and B?

A is a proper subset of B

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B is a proper subset of A

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A is equal to B

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A is a subset of B

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If A = {1, 2, 3} and B = {3, 4, 5}, what is A ∪ A?

{1, 2, 3}

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{1, 2, 3, 4, 5}

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{1, 2, 3, 3}

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{1, 2, 3, 3, 4, 5}

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If A ∪ B = A, what can you conclude about sets A and B?

A is a proper subset of B

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B is a proper subset of A

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A is equal to B

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A is a subset of B

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What is the union of the sets {1, 2, 3} and {3, 4, 5}?

{1, 2}

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{1, 2, 3, 4, 5}

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{3}

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{4, 5}

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What is the intersection of the sets {1, 2, 3} and {3, 4, 5}?

{1, 2}

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{3}

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{4, 5}

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{1, 2, 3, 4, 5}

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If A ∪ B = B, what can you conclude about sets A and B?

A is a proper subset of B

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B is a proper subset of A

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A is equal to B

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A is a subset of B

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If A = {1, 2, 3} and B = {3, 4, 5}, what is |A ∩ B|?

1

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2

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3

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0

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If A = {1, 2, 3} and B = {3, 4, 5}, what is |A ∪ B|?

5

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6

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7

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8

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If A = {1, 2, 3} and B = {3, 4, 5}, what is |A ∩ (A ∪ B)|?

1

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2

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3

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6

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If A = {1, 2, 3} and B = {3, 4, 5}, what is |A ∪ (A ∩ B)|?

1

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2

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3

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6

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If A = {1, 2, 3} and B = {3, 4, 5}, and C = {5, 6, 7}, what is (A ∪ B) ∩ C?

{3}

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{5}

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{3, 5}

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{1, 2, 3, 4, 5, 6, 7}

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If A = {1, 2, 3} and B = {3, 4, 5}, and C = {5, 6, 7}, what is (A ∩ B) ∪ C?

{3, 5, 6, 7}

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{1, 2, 3, 4, 5, 6, 7}

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{5}

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{1, 2, 3}

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SSS1 Math Quiz 6.5 – Union and Intersection

SSS1 Math Quiz 6.5 – Union and Intersection

Noah Wasiu September 5, 2024

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