Question

Which of the following gives all of the sets that contain -1/2?

A. the sets of all rational numbers and the set of all real numbers

B. the set of all natural numbers and the set of all irrational numbers

C. the set of all intergers and the set of rational numbers

D. the set of all natural numbers, the set of rational numbers, and the set of all real numbers

​

Answer 1

B D B C

Explanation:

rational numbers, real numbers

3

irrational

rational

a. Z, Q, R b. Q, R c. N, Z, Q, R d. R

3

8

= 0.375, nonrepeating, terminating; 5

6

=

0.83, repeating, nonterminating; 12

15 = 0.8,

nonrepeating, terminating; 7

11 = 0.63,

repeating, nonterminating

real, irrational; real, rational, whole

Answers may vary. Sample: − 50

Answer 2

B the set of all natural numbers and the ser of all