UNIVERSITY OF CAMBRIDGE INTERCONTINENTAL EXAMINATIONS

Intercontinental General License of Secondary Education

*4849274249*

0580/42

MATH

October/November 2012

Paper four (Extended)

2 hours 30 minutes

Prospects answer for the Question Newspaper.

Additional Elements:

Electronic calculator

Mathematical dining tables (optional)

Geometrical instruments

Looking up paper (optional)

READ THESE TYPES OF INSTRUCTIONS INITIAL

Write your Centre amount, candidate quantity and name on all of the checking you turn in. Write in dark green or black pen.

You may use a pen for any diagrams or charts.

Do not use staples, paper clips, highlighters, glue or perhaps correction smooth. DO NOT WRITE IN ANY BARCODES.

Answer your concerns.

If doing work is needed for almost any question it should be shown under that issue. Electronic calculators should be used.

If the amount of accuracy is usually not specified in the problem, and if the answer is not precise, give the answer to three significant figures. Offer answers in degrees to 1 decimal place. For ПЂ use both your calculator value or perhaps 3. 142.

At the end of the examination, fasten all your work securely collectively. The number of marks is given in brackets [ ] by the end of each issue or portion question. The total of the markings for this daily news is 130.

This record consists of 20 printed pages.

IB12 11_0580_42/2RP

В© UCLES 2012

[Turn above

2

you

A factory produces chicken food constructed with sunflower seedling, millet and maize.

Intended for

Examiner's

Make use of

(a) The amounts of sunflower seed, millet and maize are in the ratio sunflower seed: millet: maize = 5: 3: 1 .

(i) How much millet is there in 15 kg of fowl food?

Answer(a)(i)

kg [2]

(ii) In a bag of bird foodstuff there is sixty g of sunflower seedling. What is the mass of bird meals in a small tote?

Answer(a)(ii)

g [2]

(b) Sunflower seed products cost $204. 50 to get 30 kilogram from Jon's farm or perhaps в‚¬96. forty for twenty kg from Ann's farm building. The exchange rate is usually $1 = в‚¬0. 718.

Which farm has the least expensive price per kilogram?

You need to show clearly all your functioning.

Answer(b)

В© UCLES 2012

0580/42/O/N/12

[4]

3

(c) Bags are filled with parrot food for a price of 420 grams every second.

Pertaining to

Examiner's

Employ

How many 20 kg bags can be completely filled in 4 hours?

Answer(c)

[3]

(d) Brian acquires bags of bird food from the manufacturing plant and provides them in the shop for $15. 30 each. He makes 12. five per cent profit on each bag.

Simply how much does Brian pay for every bag of bird meals?

Answer(d) bucks

[3]

(e) Brian purchases 600 hand bags of bird food.

one particular

.

50

Just how many luggage would Brian expect to be damaged?

The probability that the bag is definitely damaged is usually

Answer(e)

В© UCLES 2012

0580/42/O/N/12

[1]

[Turn over

4

2

Pertaining to

Examiner's

Work with

A

32 m

B

43 m

NOT TO

SIZE

64 meters

D

C

The diagram represents a field in the form of a twosided ABCD. ABS = thirty-two m, BC = 43 m and AC = 64 meters.

(a) (i) Show clearly that position CAB sama dengan 37. 0В° correct to just one decimal place. Answer(a)(i)

[4]

(ii) Determine the area from the triangle DASAR.

Answer(a)(ii)

m2 [2]

(b) CD sama dengan 70 m and angle DAC sama dengan 55В°.

Determine the perimeter of the whole field ABCD.

Answer(b)

В© UCLES 2012

0580/42/O/N/12

meters [6]

a few

3

(a) (i) Factorise completely the word 4x2 U 18x To 10.

To get

Examiner's

Work with

Answer(a)(i)

[3]

(ii) Fix 4x2 O 18x Um 10 = 0.

or x sama dengan

Answer(a)(ii) by =

[1]

(b) Solve the equation 2x2 O 7x Um 10 = 0.

Demonstrate all your functioning and give your answers right to two decimal places.

or perhaps x sama dengan

Answer(b) times =

(c) Write

6

3x в€’ 1

O=

2

xв€’2

as a single fraction in the simplest contact form.

Answer(c)

В© UCLES 2012

[4]

0580/42/O/N/12

[3]

[Turn over

6

4

(a)

To get

Examiner's

Work with

B

A

32В°

143В°

NOT TO

LEVEL

D

To

C

Factors A, C and M lie on a circle middle O.

HANDBAG and BC are tangents to the group.

Angle ABC = 32В° and angle DAB sama dengan 143В°.

(i) Calculate perspective AOC in quadrilateral AOCB.

Answer(a)(i)...