4MA0 Foundation June 2013 Paper 1R Q23
23
Diagram NOT accurately drawn
Work out the value of \(x\).
Give your answer correct to 3 significant figures.
(3)
| Scheme | Marks |
|---|---|
| \((x^2 =)\; 14.2^2 - 10.8^2\;(= 85)\) | M1 |
| \(x = \sqrt{85}\) | M1 dep |
| 9.22 | A1 |
| (3) |
Notes
M1 dep: (=9.21954..)
A1: Awrt 9.22