Find $\begin{pmatrix} 4 \\ 1 \end{pmatrix} + \begin{pmatrix} 2 \\ 5 \end{pmatrix}$.

$\begin{pmatrix} 6 \\ 6 \end{pmatrix}$

Which scalar multiple gives $2\begin{pmatrix} 3 \\ -1 \end{pmatrix}$?

$\begin{pmatrix} 6 \\ -2 \end{pmatrix}$

15questions. Pick an answer and you'll see why right away.

How is a bearing of fifty degrees clockwise from north written?
An angle of elevation is measured:
Find $\begin{pmatrix} 4 \\ 1 \end{pmatrix} + \begin{pmatrix} 2 \\ 5 \end{pmatrix}$ .
Find the magnitude of the vector $\begin{pmatrix} 6 \\ 8 \end{pmatrix}$ .
Which scalar multiple gives $2\begin{pmatrix} 3 \\ -1 \end{pmatrix}$ ?
Which multiplier increases an amount by $12\%$ ?
A price rises by $25\%$ to $\pounds 100$ . What was the original price?
$\pounds 500$ earns $2\%$ compound interest for $2$ years. What is the total?
Calculate $\tfrac{2}{3} \times \tfrac{3}{4}$ .
Calculate $\tfrac{3}{4} \div \tfrac{1}{2}$ .
For the data $4, 6, 7, 9, 12, 13, 15$ , what is the median?
The interquartile range is calculated as:
A data set has mean $10$ and the squared deviations sum to $32$ over $5$ values. The standard deviation is:
Points on a scattergraph rise from lower left to upper right. This shows:
A line of best fit is $y = 2x + 3$ . Estimate $y$ when $x = 4$ .