A1 Weekly Quiz #1: The Complex Number System

A never ending decimal is which type of number?

• Rational 

• Irrational

• None of these

Classify the Number: -23

• Rational

• Real, rational, integer

• integer

• Real, irrational, whole

Which statement is true?

• Every rational number is an integer

• Every whole number is a natural number

• Every integer is a whole number

• Every whole number is a rational number

Classify the following:
√-9

• real

• imaginary

• rational

• whole

Which of the following is not true about zero?

• Zero is a real number.

• Zero is a rational number.

• Zero is an integer.

• Zero is a natural (counting) number.

What does i² =  ?

• 1

• -1

• √-1

• √1

Simplify √-23

• -√23

• 23i

• 23

• i√23

What is the best classification for this number?   0

• natural

• whole

• integer

• rational

Approximate

 $\sqrt{28}$  to the nearest integer.

• 6

• 5

• 4

• 7

Simplify

 $\sqrt{52x^{3\ }y^2}$  

•  $2xy\sqrt{13}$  

•  $x^2\sqrt{52y^2}$  

•  $4x^2y^2\sqrt{13}$  

•  $2xy\sqrt{13x}$