Question 1

Which of the following numbers is NOT a rational number?

Accepted Answer

$$\sqrt{2}$$

Question 2

Which set does the number $$0$$ belong to?

Accepted Answer

Whole numbers, integers, and real numbers

Question 3

A diver is 30 feet below sea level. Which integer best represents this situation?

Accepted Answer

$$-30$$

Question 4

Which of the following numbers is an irrational number?

Accepted Answer

$$\pi$$

Question 5

Express $$\frac{7}{4} as a $$decimal.

Accepted Answer

$$1.75$$

Question 6

Which inequality symbol correctly completes the statement: $$-8\ \_\ -3$$?

Accepted Answer

$$\u003c$$

Question 7

What is the absolute value of $$-12$$?

Accepted Answer

$$12$$

Question 8

Which of the following numbers is both an integer and a rational number?

Accepted Answer

$$-5$$

Question 9

Which of the following statements is TRUE?

Accepted Answer

Every integer is a rational number.

Question 10

A temperature of $$-15$$ degrees Fahrenheit is recorded in a city. Which set(s) does $$-15$$ belong to?

Accepted Answer

Integers, rational numbers, and real numbers

Question 11

Which of the following numbers is NOT a whole number?

Accepted Answer

$$-2$$

Question 12

Which of the following is the decimal representation of a rational number?

Accepted Answer

$$0.666\ldots$$

Question 13

Which of the following is the correct classification for the number $$\sqrt{16}$$?

Accepted Answer

Natural number, whole number, integer, rational number, and real number

Question 14

If $$|x| = 7$$, which of the following could be the value of $$x$$?

Accepted Answer

$$-7$$

Question 15

Which of the following numbers is to the right of $$-2 on $$the number line?

Accepted Answer

$$0$$

Question 16

Which of the following is a true statement about the number $$0$$?

Accepted Answer

$$0 is $$neither positive nor negative.

Question 17

Which of the following is the correct way to write the set of natural numbers?

Accepted Answer

$$\{1, 2, 3, 4, 5, \ldots\}$$

Question 18

Which of the following numbers is a terminating decimal?

Accepted Answer

$$0.5$$

Question 19

Which of the following is the correct definition of the absolute value of a real number $$a$$?

Accepted Answer

The distance from $$0 to$$ $$a on $$the number line

Question 20

Which of the following numbers is NOT a real number?

Accepted Answer

$$\sqrt{-1}$$

Chapter 1: Variables, Real Numbers, and Mathematical Models – Study Notes

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