Approximate the number to the nearest (a) integer and (b) tenth.

Question

1. \(\sqrt{8}\)
2. \(\sqrt{-13}\)
3. \(\sqrt{-24}\)
4.\(\sqrt{20}\)

Answer 1

(a)
1. \(\sqrt{8} \approx 3\)
2. \(\sqrt{-13}\) is not a real number
3. \(\sqrt{-24}\) is not a real number
4. \(\sqrt{20} \approx 4\)

(b)
1. \(\sqrt{8} \approx 2.8\)
4. \(\sqrt{20} \approx 4.5\)