Which of the following is an irrational number?
(a) √4/9
(b) √12/√3
(c) √7
(d) √81
Solution:
(c) √7
Which of the following numbers has a terminating decimal representation?
(a) 3/7
(b) 3/5
(c) 1/3
(d) 3/11
Solution:
(b) 3/5 = 3×2/5×2 = 6/10 = 0.6
More Solutions:
- Express the following numbers in the form p/q.
- Classify the following numbers as rational or irrational:
- what can you say about the prime factors of q?
- Insert an irrational number between the following.
- Insert two irrational numbers between 2 and 3.
- Find one rational number between √2 and √3.
- Insert irrational numbers between √5 and √7.
- Simplify the following: (i) √45 – 3√20 + 4√5
- Simplify the following: (i) (5 + √7) (2 + √5).