Higher November 2019 Paper 1 Q28
28 Work out the value of \(\quad 100^{-\frac{1}{2}}\) [2 marks]
| Answer | Mark | Comments |
|---|---|---|
| \(\dfrac{1}{10}\) or 0.1 | B2 | B1 \(\sqrt{100}^{\,-1}\) or \(10^{-1}\) or \(\left(\dfrac{1}{100}\right)^{\frac{1}{2}}\) or \(\dfrac{1}{100^{\frac{1}{2}}}\) or \(\dfrac{1}{\sqrt{100}}\) or \(\sqrt{\dfrac{1}{100}}\) |
Additional guidance
| Accept \(\pm\) or \(-\) for B1 only, eg \(\pm 10^{-1}\) or \(-\dfrac{1}{10}\) | B1 |