Real Numbers

Question 1

Choose all true statements.

Revolt · Accepted Answer

Some rational numbers are natural numbers.; All whole numbers are integers.; Some integers are natural numbers.

Question 2

Choose all the sets containing the number –1.576.

Revolt · Accepted Answer

rational numbers; real numbers

Question 3

Choose all the sets containing the number

Revolt · Accepted Answer

irrational numbers; real numbers

Question 4

Which expression illustrates the associative property of addition?

Revolt · Accepted Answer

(3 + 19) – 12 = 3 + (19 – 12)

Question 5

Complete the statement below.The expression illustrates the commutative property of multiplication.

Revolt · Accepted Answer

11 × w x 3 = 11 × 3 × w

Question 6

Under what operations are the set of integers closed? Explain your answer.

Revolt · Accepted Answer

The integers are closed under addition, subtraction, and multiplication because these operations on integers always produce another integer. They are not closed under division; for example, 1 ÷ 3 = 1/3, which is not an integer.

Question 7

Which of the following facts did your answer include?

Revolt · Accepted Answer

The set of integers is closed under addition, subtraction, and multiplication.

Real Numbers Answers

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