Higher November 2018 Paper 1 Q17
17 Work out the exact value of \(\quad \left(\dfrac{3}{4}\right)^{-3}\) [2 marks]
| Answer | Mark | Comments |
|---|---|---|
| \(\left(\dfrac{4}{3}\right)^3\) or \(\dfrac{4^3}{3^3}\) or \(\left(\dfrac{27}{64}\right)^{-1}\) or \(\dfrac{1}{\frac{27}{64}}\) or \(\dfrac{1}{\left(\frac{3}{4}\right)^3}\) or \(\dfrac{1}{0.75^3}\) or \(\left(\dfrac{1}{0.75}\right)^3\) | M1 | |
| \(\dfrac{64}{27}\) or \(2\dfrac{10}{27}\) | A1 | oe fraction, mixed number or decimal |
Additional guidance
| \(\dfrac{64}{27}\) followed by an incorrect attempt to convert to a mixed number | M1A1 |
| \(\dfrac{27}{64}\) | M0A0 |