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10 December, 09:07

The set of integers is closed under the operation of addition.

A: Which equation illustrates this concept?

B: Which statement correctly explains this concept?

Select one answer for question A and one answer for question B.

A: 2+27=29

A: 34:4=172

A: 1-3=-2

A: 2⋅6=12

B: The sum of the integers 2 and 27 is the integer 29, which demonstrates that integers are closed under addition.

B: The quotient of the integers 34 and 4 is the integer 172, which demonstrates that integers are closed under addition.

B: The difference of the integers 1 and 3 is not an integer, - 2, which does not demonstrate that integers are closed under addition.

B: The product of the integers 2 and 6 is not an integer, 12, which does not demonstrate that integers are closed under addition.

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Answers (1)
  1. 10 December, 12:02
    0
    A: 2+27=29

    B: The sum of the integers 2 and 27 is the integer 29, which demonstrates that integers are closed under addition.

    Step-by-step explanation:

    Since, closed property of addition for a set A is defined as,

    ∀ x, y ∈ A ⇒ x + y ∈ A,

    ∵ Set of integer is closed under multiplication,

    If Z represents the set of integer,

    Then 2, 27 ∈ Z ⇒ 2 + 27 = 29 ∈ Z,

    Hence, the equation illustrates given statement,

    2+27 = 29

    The statement that correctly explains given statement,

    The sum of the integers 2 and 27 is the integer 29, which demonstrates that integers are closed under addition. c
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