4MA0 Foundation June 2011 Paper 1 Q23
23
Diagram NOT accurately drawn
Work out the value of \(x\).
Give your answer correct to 3 significant figures.
(3)
| Scheme | Marks |
|---|---|
| \(9.3^2 - 3.7^2\) or \(86.49 - 13.69\) or \(72.8\) | M1 |
| \(\sqrt{9.3^2 - 3.7^2}\) | M1 |
| 8.53 | A1 |
| (3) | |
| (Total 3 marks) |
Notes
M1: for squaring and subtracting
M1: (dep) for square root
A1: for answer rounding to 8.53