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Preview questions
1. What is the decimal representation of the rational number 1/8?
0.125 · 0.12 · 0.15 · 0.1
2. Which of the following is an irrational number?
√4 · √2 · 1/3 · 0.75
3. What is the prime factorization of 60?
2 × 2 × 3 × 5 · 2 × 3 × 10 · 3 × 4 × 5 · 2 × 30
4. Which of the following is not a rational number?
-5 · 0 · √3 · 3/4
5. Which number is a perfect square?
15 · 25 · 30 · 50
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