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Mathematics
9th -
12thgrade
Number System and Imaginary Numbers
7 questions
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- 1. Match
Match the following to the BEST (most exact) category that it belongs to
rational
0
integer
5
natural number
-4
whole number
irrational
- 2. Multiple Choice
What type of real number has the following definitions?
- a non-repeating, non-terminating decimal,
- cannot be written as a fraction
irrational
prime
rational
imaginary
- 3. Multiple Choice
natural number
whole number
integer
rational number
imaginary number
- 4. Multiple Choice
The value of π cannot be written as the ratio of two integers. Which statement is true?
π is a rational number.
π is an irrational number.
The decimal expansion of π terminates.
The decimal expansion of π repeats.
- 5. Multiple Choice
i
-1
1
-i
- 6. Match
- 7. Multiple Choice
x = ±5i
x = -25
x = ±5
I really didn't get this.
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