Adaptive Practice
Real Numbers
10 questions • Earn up to 104 XP • First attempt — go for 100%!
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Question 1 of 10
⏱ 0:30
Easy
Which of the following is a rational number?
Easy
The decimal expansion of a rational number is always:
Medium
Which of the following numbers is irrational?
Hard
If p and q are prime numbers, which of the following is always irrational?
Hard
The number 0.101001000100001... where the number of zeros between 1's increases by one each time is:
Easy
Which of the following is the correct representation of the number -√16?
Medium
The product of two irrational numbers can be rational. Which of the following is an example?
Easy
The decimal expansion of 1/7 is 0.142857142857... What type of decimal is this?
Easy
Which of the following statements is true?
Hard
If a and b are positive integers such that √a + √b is rational, then: