4MA0 Foundation June 2011 Paper 2 Q12
12
(a) Solve
(i) \(\dfrac{x}{4} = 7\)
(ii) \(6y + 5 = 23\)
(3)(b) Simplify
(i) \(a \times a \times a \times a\),
(ii) \(5a \times 6b\),
(iii) \(q^8 \div q^2\).
(3)(c) \(v = w^2 - 2w\).
Work out the value of \(v\) when \(w = 6\) (2)
Work out the value of \(v\) when \(w = 6\) (2)
| Scheme | Marks |
|---|---|
| (i) Answer: 28 | B1 |
| (ii) \(6y = 23 - 5\) | M1 |
| 3 | A1 |
| (3) |
Notes
M1: or 23 – 5 ÷ 6 or 22.16... (2dp necessary) or 22.17
A1: Answer only or numerical method = M1A1
| Scheme | Marks |
|---|---|
| (i) Answer: \(a^4\) | B1 |
| (ii) Answer: \(30ab\) | B1 |
| (iii) Answer: \(q^6\) | B1 |
| (3) |
| Scheme | Marks |
|---|---|
| \(6^2 - 2 \times 6\) oe | M1 |
| 24 | A1 |
| (2) | |
| (Total 8 marks) |
Notes
M1: accept 36 – 12