Question 1
What is the greatest integer value of n if 2n < 17?
[1]
What is the least integer value of n if 2n > 125?
[1]
What is the greatest integer value of n if 2n < 17?
[1]
What is the least integer value of n if 2n > 125?
[1]
The table below shows some of the values of y = 2x2 + 5x − 3 for values of x from −4 to 2.
| x | −4 | −3 | −2 | −1 | 0 | 1 | 2 |
| y = 2x2 + 5x − 3 | 9 | 0 | −5 | −6 | −3 | 15 |
On the graph paper opposite, draw the graph of y = 2x2 + 5x − 3 for values of x from
− 4 to 2.
[2]
At lunchtime on Wednesday, a café had 19 customers.
• 7 of these customers bought a meal and a drink. • 2 of these customers did not buy a meal or a drink. • The total number of customers who bought a meal was twice the total number of customers who bought a drink.
One of these customers is chosen at random.
What is the probability that this customer bought a meal?
[2]
The equation of a straight line is y = −3 x + 7.
What is the gradient of the line?
Circle the correct answer.
[1]
What are the coordinates of the point where the line intersects the y-axis?
Circle the correct answer.
(− 3, 7) (0, − 3) (0, 3)
(0, − 7) (0, 7)
[1]
In the diagram below, A B D and B C D are both right-angled triangles.
A B = 7·3 cm, A D = 13·8 cm and C D = 5·5 cm.
Calculate the value of y.
[6]
The triangles shown below are similar.
Calculate the value of x.
[2]
Four rectangles labelled A, B, C and D are shown below.
Which two rectangles are similar?
Give a reason for your choice.
The two rectangles which are similar are rectangles........ and........
[2]
Factorise x2 + 3x − 40, and hence solve x2 + 3x − 40 = 0.
[3]
a and b are two numbers, where b > a.
The mean of the two numbers is equal to the range of the two numbers.
Show that 3a = b.
[3]
Aled and Berwyn share £ x in the ratio 2: 3.
Aled’s share of the money is £0.4x.
What is Berwyn’s share of the money in terms of x?
[1]
Carys and Delyth share the same amount, £x, in the ratio 3: 7.
Show that one of these four people receives the same amount as the combined total of
two of the other people.
[3]
The pyramid below has a horizontal rectangular base A B C D.
The point O is the top of the pyramid. It is vertically above the point A. O C = 113 cm, A B = 72 cm and C B = 84 cm.
Calculate the length of O A, the vertical height of the pyramid.
[4]
Calculate the volume of this pyramid.
[2]
Triangle A B C has sides A B = 24·1 cm and A C = 17·9 cm, as shown below.
B A C = 37°.
Calculate the area of the triangle A B C.
[2]
The values e = 7·1, f = 73·9 and g = 65·7 are each given correct to 1 decimal place.
The value of h is found using the formula.h
Calculate the greatest value of h. Give your answer correct to four decimal places.
You must show all your working.
[3]
Sketch the curve y cosx on the axes below, for values of x from 0° to 360°.
You must indicate any important values on both axes.
[2]
Solve the equation.2cosx 1
Give all answers in the range x = 0° to x = 360°.
[2]
Zoltan rolls three unbiased 6-sided dice.
Calculate the probability that the sum of the values shown on the dice is 17.
[3]
Two similar prisms have volumes of 569 cm3 and 3821 cm3, as shown below.
The uniform cross-sectional area of the smaller prism is 29 cm2.
Calculate the uniform cross-sectional area of the larger prism.
[4]
Solve the equation 7 x (x + 3) + 1 = x (x + 2).
You must use the quadratic formula and show all your working.
Give your answers correct to 2 decimal places.
[5]
In the diagram below, AB = 13 cm, AD = 17 cm, BC = 19 cm and DC = 11 cm.
Calculate the size of angle x.
You must show all your working.
[6]
The paper as printed
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