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Work out. $$(0.03)^2$$
(a) Write the fraction $\frac{15}{40}$ in its lowest terms.
..................................................... [1]
(b) Work out.
$$\frac{2}{3} + \frac{2}{9}$$
..................................................... [2]
Solve the equation.
$x - 11 = -4$
$x = \text{.............................}$ [1]
Change 600 \text{ cm}^3 into \text{ m}^3. \text{ ..................... m}^3 [1]
Work out $64^{\frac{1}{3}}$.
\( AB \) is parallel to \( CD \).
Find angle \( ACD \).
Angle \( ACD \) = \text{...................................................} [1]
Kendra jogs 7 km in 45 minutes.
She then runs at 12 km/h for 30 minutes.
Find her average speed in km/h for the whole journey.
.................................................. km/h
The mean of eight numbers is 25.
When two extra numbers are included the mean of the ten numbers is 24.
Find the mean of the two extra numbers.
Solve the simultaneous equations.
$$5x + 2y = -12$$
$$3x - y = -5$$
x = ext{..........................}
y = ext{..........................} [3]
A is the point (-1, 13) and B is the point (3, 1).
Find the equation of the line AB, giving your answer in the form $y = mx + c$.
$y =$ ..................................................
Solve.
\(6x^2 - 5x - 6 = 0\)
\(x = \text{........................} \text{ or } x = \text{........................} \) [3]
The lengths of the sides of a triangle are 3 cm, 4 cm and 5 cm.
Find the sine of the smallest angle.
John goes to a shop that sells newspapers and magazines only.
(a) Complete the table of probabilities of John buying something at the shop.
[Table_1]
| | Buys a newspaper | Does not buy a newspaper | Total |
|------------------------------|------------------|--------------------------|-------|
| Buys a magazine | | | 0.40 |
| Does not buy a magazine | | 0.25 | |
| Total | 0.55 | | 1.00 |
[2]
(b) Find the probability that John buys a magazine but not a newspaper.
[1]
f(x) = |2x + 3|
Find the values of x when f(x) = 15.
A bag has 5 black counters, 4 white counters and 1 red counter. One counter is chosen at random and is replaced. A second counter is then chosen at random.
Find the probability that the two counters chosen are different colours.
Solve.
$\log x = 1 + \log 9 - \log 8 + 2 \log \frac{2}{3}$
x = .............................................
(a) Expand the brackets and simplify.
$$(\sqrt{a} + \sqrt{b})(\sqrt{a} - \sqrt{b})$$
................................................... [2]
(b) Rationalise the denominator.
$$\frac{1}{\sqrt{7} + \sqrt{6}}$$
................................................... [1]
(c) Work out the value of
$$\frac{1}{\sqrt{9} + \sqrt{8}} + \frac{1}{\sqrt{8} + \sqrt{7}} + \frac{1}{\sqrt{7} + \sqrt{6}} + \frac{1}{\sqrt{6} + \sqrt{5}} + \frac{1}{\sqrt{5} + \sqrt{4}}.$$
................................................... [2]