Higher November 2016 Unit 2 Q3
3. Circle the correct answer for each of the following.
(a) \(x^3 \times x^6 =\) [1]
\(x^{36}\) \(x^{0{\cdot}5}\) \(x^2\) \(x^9\) \(x^{18}\)
(b) \((7x - 5y) - (3x + 2y) =\) [1]
\(4x - 3y\) \(4x - 7y\) \(4x + 3y\) \(-4x + 7y\) \(-4x - 7y\)
(c) A car travels \(x\) miles in 30 minutes.
Its average speed in miles per hour is [1]
Its average speed in miles per hour is [1]
\(\dfrac{x}{2}\) \(\dfrac{x}{30}\) \(2x\) \(\dfrac{2}{x}\) \(30x\)
| Scheme | Marks | Comments |
|---|---|---|
| \(x^9\) | B1 |
| Scheme | Marks | Comments |
|---|---|---|
| \(4x - 7y\) | B1 |
| Scheme | Marks | Comments |
|---|---|---|
| \(2x\) | B1 |