Question 1
Calculate.
Calculate.
The length, L, of a steel rod is 8.3 m, correct to 1 decimal place.
Complete the error interval for length L.
[2]
Write 504 as the product of its prime factors.
[3]
Find the lowest common multiple (LCM) of 180 and 504.
[2]
Find the value of s when u = 12, a = 10 and t = 4.
[2]
Mo’s tyre pressure gauge shows a reading which is 12% higher than the actual pressure.
What is the actual pressure when Mo’s gauge shows 38.64?
[3]
The diagram shows a semi-circle inside a rectangle of length 120 m. The semi-circle touches the rectangle at A, B and C.
Calculate the perimeter of the shaded region. Give your answer correct to 3 significant figures.
[5]
A, B, C and D are four towns.
Work out the bearing of B from C.
[2]
Calculate the bearing of D from B.
[4]
The table shows the average number of customers per day entering a shop.
| 2015 | 2016 | |||||||
| Months | Jan- Mar | Apr- Jun | July- Sep | Oct- Dec | Jan- Mar | Apr- Jun | July- Sep | Oct- Dec |
| Average number of customers per day | 119 | 264 | 368 | 172 | 130 | 304 | 381 | 192 |
Complete the time series graph below.
[2]
Make two different comments comparing the number of customers entering the shop in 2015 and 2016.
[2]
Each week Dan drives two routes, route X and route Y.
One week he drives route X three times and route Y twice. He drives a total of 134 miles that week.
Another week he drives route X twice and route Y five times. He drives a total of 203 miles that week.
Find the length of each route.
(a) route X =........ miles
[5]
State an assumption that has been made in answering part (a).
[1]
On 1st November 2015 there were 4200 trees planted in a wood. On 1st November 2016, only 3948 of these trees were still alive.
It is assumed that the number of trees still alive is given by
N = art
where N is the number of trees still alive t years after 1st November 2015.
Show that on 1st November 2030 the number of trees still alive is predicted to have decreased
by over 60% compared with 1st November 2015.
[3]
Triangle T is drawn on a coordinate grid.
Translate triangle T using the vector .
[2]
Describe fully the single transformation that represents the following.
A rotation with centre (0, 0) of 180° followed by a rotation with centre (0, 0) of 90° clockwise.
[2]
A reflection in the x-axis followed by a reflection in the y-axis.
[3]
The cumulative frequency graph shows the speeds, in miles per hour (mph), of vehicles passing a 40 mph speed limit sign on a road.
A speed camera will be installed if more than 30% of vehicles go over the speed limit of 40 mph.
Use information from the graph to decide if a speed camera should be installed.
[4]
Rashid drives his car along a road passing through two sets of traffic lights. The tree diagram shows the probabilities of the lights being red when he reaches them.
Write down the probability that the first set is not red.
[1]
Given that the first set is red, write down the probability that the second set is not red.
[1]
Work out the probability that both sets are not red.
[2]
Work out the probability that at least one set is not red.
[3]
The diagram shows triangle ABC with D on AC and E on AB. DE is a straight line.
AD = 28 m, AE = 41 m, DE = 22 m and BC = 64 m.
Calculate the length CD.
[6]
The graph shows the speed, v metres per second (m/s), of a car at time t seconds.
It is claimed that the car has accelerated from 0 to 60 miles per hour in the first 10 seconds.
Does the graph support this claim? Show your reasoning.
Use 1 mile = 1.6 kilometres.
[5]
Use the graph to estimate the acceleration at t = 7.
[3]
The speed of this car is directly proportional to the square of the time.
Find a formula linking v and t.
[3]
Georgina says that the graph shows that the speed of the car will continue to increase after 10 seconds.
Make one comment to show that this statement is incorrect.
[1]
Write x2 - 10x + 16 in the form x + a
2 + b.
[3]
Describe fully the graph which has the equation x2 + y2 = 9.
[2]
Solve this equation. Give each value correct to 2 decimal places.
[3]
Here are the first four terms of a sequence.
Find the nth term of this sequence.
[2]
Here are the first four terms of a quadratic sequence, the n th term of this quadratic sequence is an2 + bn + c.
2 12 28 50
Find the values of a, b and c.
[4]
The graph shows the speed, in metres per second, of a particle over the first four seconds of
Use the graph to estimate the distance travelled by the particle in the four seconds.
[2]
The paper as printed
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