Higher June 2017 Paper 1 Q24
24
(a) Work out \(\quad \sqrt{12\tfrac{1}{4}} \quad\) as an improper fraction. [1 mark]
(b) Work out \(\quad \sqrt[3]{16} \quad\) as a power of 2 [2 marks]
| Answer | Mark | Comments |
|---|---|---|
| \(\dfrac{7}{2}\) | B1 | oe improper fraction eg \(\dfrac{14}{4}\) |
Additional guidance
Condone \(\pm\) on numerator and/or denominator
| Answer | Mark | Comments |
|---|---|---|
| \((16 =)\ 2^4\) or \((\sqrt[3]{16} =)\ 16^{\frac{1}{3}}\) or \(\sqrt[4]{16} = 2\) or \(4^{\frac{2}{3}}\) or \(2\sqrt[3]{2}\) | M1 | oe |
| \(2^{\frac{4}{3}}\) or \(2^{1\frac{1}{3}}\) or \(2^{1.\dot{3}}\) | A1 |
Additional guidance
| \(\sqrt[3]{16} = 2^4\) not recovered | M0A0 |