PA/CIIH/CIII SOL Review – DAY 2 (SOL 8.2)

Place the subsets in order from top to bottom according to their letter with the last letter representing the subset by itself on the right. Separate each letter by a comma, NO SPACES.

Which of the following describes the set of natural numbers?

• …-3, -2. -1, 0, 1, 2, 3,….

• 0, 1, 2, 3, ….

• 1, 2, 3, 4, ….

• Any number that can be written in the form of a/b.

• A

• B

• C

• D

Which is an irrational number?

• –7.5

• $\sqrt{9}$

• $\sqrt{11}$

• $18.125125...$

To which subset of the real number system does the number 4.3728 belong?

• irrational

• natural

• integers

• rational

Identify which statement is false.

• The product of two rational numbers is rational.

• The sum of a rational number and an irrational number is irrational.

• The sum of a rational number and an irrational number is rational.

• The product of a nonzero rational number and an irrational number is irrational.