9/26/23 Real Numbers

The set of __________ contains all the numbers that are rational and irrational.

• integers

• whole numbers

• real numbers

• natural numbers

Check all of the sets of numbers that are contained in the set of Rational Numbers.

• Integers

• Irrational Numbers

• Whole Numbers

• Natural Numbers

• Real Numbers

All whole numbers are rational.

• true

• false

Choose the number(s) that apply to these sets: Real, Rational, Integer

• -27

• 2/3

• 0

• 1/4

• 2.75

Which of the following is always true?

• All integers are whole numbers.

• Some whole numbers are not rational numbers.

• All rational numbers are integers.

• All whole numbers are integers.

The 3 in 3xy is called the _______

• constant

• index

• expression

• coefficient

2x, 2y, and 2xy are like terms.

• true

• false

Which expressions are equivalent to 3(4x + 5)

• 12x + 5

• 12x + 15

• 3x + 4x + 5x + 10 + 5

• 5x + 7 + 7x + 8

• 7x + 8

Is 8.27 rational or irrational?

• Rational
• Irrational
• Both
• None of the above

Zero is a ___________.

• whole number
• natural number
• whole number, integer, and rational
• irrational