1. Which of the following refers to any number that can be expressed as the
quotient (or ratio) of two integers, where the denominator is not equal to zero?
A. rational numbers C. principal roots
B. irrational numbers D. square roots
2. The non-negative root of a number is called _________.
A. rational number C. principal root
B. irrational number D. square root
3. The number that cannot be expressed as the quotient of two integers is called
________.
A. rational number C. principal root
B. irrational number D. square root
4. Which of the following is an example of a rational number?
A. √2 B. √4 C. √5 D. √7
5. What is the principal root of √16?
A. √4 B. √− 4 C. 4 D. – 4
6. Which of the following is an example of an irrational number?
A. 3.123456 B. 3.123456... C. 3.123123 D. 3.123123...
7. The principal root of −√
81
4
is _______.

A. −
9
2

B.
9
2

C. −√
9
2

D. √
9
2

8. Between what two numbers is the estimate root of √24?
A. 2 and 3 B. 3 and 4 C. 4 and 5 D. 5 and 6
9. Between what two integers is the estimate root of −√50?
A. – 6 and – 7 B. – 7 and – 8 C. – 8 and – 9 D. – 9 and – 10
10.What is the estimate root of √75?
A. 8.9 B. 8.8 C. 8.7 D. 8.6
11. Which of the following describes the location of the principal root of √49 ?
A.

B. .

C. .

D.

1

12.Which rational number is illustrated in the plotting below?

A. √6 C. −√6
B. √36 D. −√36
13. Which plotting refers to the principal root of −√4 ?
A.
B.
C.
D.

For items 14 – 15, choose the letter of the correct estimate plotting.

14. – 7.5247564...

A B C D

A B C D

15. √39
answer if you are smart :)​