0580 s12 qp_21

This document consists of 12 printed pages.
IB12 06_0580_21/5RP
© UCLES 2012 [Turn over
*5679730720*
UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS
International General Certificate of Secondary Education
MATHEMATICS 0580/21
Paper 2 (Extended) May/June 2012
1 hour 30 minutes
Candidates answer on the Question Paper.
Additional Materials: Electronic calculator Geometrical instruments
Mathematical tables (optional) Tracing paper (optional)
READ THESE INSTRUCTIONS FIRST
Write your Centre number, candidate number and name on all the work you hand in.
Write in dark blue or black pen.
You may use a pencil for any diagrams or graphs.
Do not use staples, paper clips, highlighters, glue or correction fluid.
DO NOT WRITE IN ANY BARCODES.
Answer all questions.
If working is needed for any question it must be shown below that question.
Electronic calculators should be used.
If the degree of accuracy is not specified in the question, and if the answer is not exact, give the answer to
three significant figures. Give answers in degrees to one decimal place.
For π
, use either your calculator value or 3.142.
At the end of the examination, fasten all your work securely together.
The number of marks is given in brackets [ ] at the end of each question or part question.
The total of the marks for this paper is 70.
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2
8
© UCLES 2012 0580/21/M/J/12
For
Examiner's
Use
1 The price of a ticket for a football match is $124 .
(a) Calculate the amount received when 76 500 tickets are sold.
Answer(a) $ [1]
(b) Write your answer to part (a) in standard form.
Answer(b) $ [1]
2 Gregor changes $700 into euros (€) when the rate is €1 = $1.4131 .
Calculate the amount he receives.
Answer € [2]
3 Factorise completely.
15p2 + 24pt
Answer [2]
4 Write the following in order of size, smallest first.
0.47 17
0.22 tan 25°
Answer < < < [2]

3
© UCLES 2012 0580/21/M/J/12 [Turn over
For
Examiner's
Use
5
xcm
29cm
53.2°
NOT TO
SCALE
Calculate the value of x.
Answer x = [2]
6 Leon scores the following marks in 5 tests.
8 4 8 y 9
His mean mark is 7.2.
Calculate the value of y.
Answer y = [2]
7 The sides of a rectangle are 6.3 cm and 4.8 cm, each correct to 1 decimal place.
Calculate the upper bound for the area of the rectangle.
Answer cm2 [2]

4
r
= 125 .
© UCLES 2012 0580/21/M/J/12
For
Examiner's
Use
8 Find r when (5) 3
Answer r = [2]
9
A B
D
(a) The point C lies on AD and angle ABC = 67°.
Draw accurately the line BC. [1]
(b) Using a straight edge and compasses only, construct the perpendicular bisector of AB.
Show clearly all your construction arcs. [2]

5
1
% per year simple interest.
For
Examiner's
Use
10 Shania invests $750 at a rate of 2 2
Calculate the total amount Shania has after 5 years.
Answer $ [3]
11 Solve the simultaneous equations.
3x + 5y = 24
x + 7y = 56
Answer x =
y = [3]

6
5
+
9 .
© UCLES 2012 0580/21/M/J/12
For
Examiner's
Use
12 Without using your calculator, work out 1
6
10
You must show your working and give your answer as a mixed number in its simplest form.
Answer [3]
13 y is inversely proportional to x2.
When x = 4, y = 3.
Find y when x = 5.
Answer y = [3]

7
–8 –7 –6 –5 –4 –3 –2 –1 0 1 2 3 4 5 6 7
1
x + 4, y [ 3 and x + y [ 6.
For
Examiner's
Use
14
y
x
7
6
5
4
3
2
1
–1
The region R contains points which satisfy the inequalities
y Y
2
On the grid, label with the letter R the region which satisfies these inequalities.
You must shade the unwanted regions. [3]
15 The scale of a map is 1 : 500 000 .
(a) The actual distance between two towns is 172 km.
Calculate the distance, in centimetres, between the towns on the map.
Answer(a) cm [2]
(b) The area of a lake on the map is 12 cm2.
Calculate the actual area of the lake in km2.
Answer(b) km2 [2]

8


5 2
+
© UCLES 2012 0580/21/M/J/12
For
Examiner's
Use
16 M = 

− 3 4

 − −
1 2
N =  

 

2 6
Calculate
(a) MN,
Answer(a) MN = [2]
(b) M−1, the inverse of M.
Answer(b) M–1 = [2]
17 Make w the subject of the formula.
c =
3
4
+
w
w
Answer w = [4]

9
For
Examiner's
Use
18
20
15
10
5
0
10 20 30 40 50 60 70 80 90 100 110 120
Speed
(m/ s)
Time (s)
The diagram shows the speed-time graph for the first 120 seconds of a car journey.
(a) Calculate the acceleration of the car during the first 25 seconds.
Answer(a) m/s2 [1]
(b) Calculate the distance travelled by the car in the first 120 seconds.
Answer(b) m [4]

10
© UCLES 2012 0580/21/M/J/12
For
Examiner's
Use
19
O
T
P
Q
S R
t
p
O is the origin and OPQRST is a regular hexagon.
= p and = t.
Find, in terms of p and t, in their simplest forms,
(a) ,
Answer(a) = [1]
(b) ,
Answer(b) = [2]
(c) the position vector of R.
Answer(c) [2]

11
For
Examiner's
Use
20
78°
O
R
P T
5cm
NOT TO
SCALE
R and T are points on a circle, centre O, with radius 5 cm.
PR and PT are tangents to the circle and angle POT = 78°.
A thin rope goes from P to R, around the major arc RT and then from T to P.
Calculate the length of the rope.
Answer cm [6]
Question 21 is printed on the next page.

12
Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every
reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the
publisher will be pleased to make amends at the earliest possible opportunity.
University of Cambridge International Examinations is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of University of
Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge.
© UCLES 2012 0580/21/M/J/12
For
Examiner's
Use
21 In this question, give all your answers as fractions.
A box contains 3 red pencils, 2 blue pencils and 4 green pencils.
Raj chooses 2 pencils at random, without replacement.
Calculate the probability that
(a) they are both red,
Answer(a) [2]
(b) they are both the same colour,
Answer(b) [3]
(c) exactly one of the two pencils is green.
Answer(c) [3]

0580 s12 qp_21

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