4MA0 Higher January 2013 Paper 4 Q9
9
Diagram NOT accurately drawn
Work out the value of \(x\).
Give your answer correct to 3 significant figures.
(3)
| Scheme | Marks |
|---|---|
| \(8.6^2 - 6.9^2\) or \(73.96 - 47.61\) or 26.35 | M1 |
| \(\sqrt{8.6^2 - 6.9^2}\) or \(\sqrt{26.35}\) | M1 |
| 5.13 | A1 |
| (3) |
Notes
M1: for squaring and subtracting
M1: (dep) for square root
A1: for answer which rounds to 5.13