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ZIMSEC O-Level Mathematics Paper 2 November 2006 Question Paper

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Exam board
ZIMSEC
Subject
Mathematics
Level
O-Level
Document
Question Paper
Paper
Paper 2
Paper code
4008/2
Time allowed
2 hours 30 minutes
Session
November
Year
2006
File
PDF, 315 KB

About this question paper

This is the ZIMSEC O-Level Mathematics question paper for Paper 2 from November 2006. Use it for exam practice under timed conditions. The paper code is 4008/2. Time allowed: 2 hours 30 minutes.

More Mathematics O-Level 2006 papers

Other years: Mathematics O-Level

Extracted text

# ZIMBABWE SCHOOL EXAMINATIONS COUNCIL <br> General Certificate of Education Ordinary Level

**MATHEMATICS**

PAPER 2

4008/2

NOVEMBER 2006 SESSION

2 hours 30 minutes

Additional materials:

Answer paper

Geometrical instruments

Graph paper (3 sheets)

Mathematical tables

Plain paper (1 sheet)

TIME 2 hours 30 minutes

### INSTRUCTIONS TO CANDIDATES

Write your name, Centre number and candidate number in the spaces provided on the answer paper/answer booklet.

Answer all questions in Section A and any three questions from Section B.

Write your answers on the separate answer paper provided.

If you use more than one sheet of paper, fasten the sheets together.

**Electronic calculators must not be used.**

All working must be clearly shown. It should be done on the same sheet as the rest of the answer.

Omission of essential working will result in loss of marks.

If the degree of accuracy is not specified in the question and if the answer is not exact, the answer should be given to three significant figures. Answers in degrees should be given to one decimal place.

### INFORMATION FOR CANDIDATES

The number of marks is given in brackets [ ] at the end of each question or part question. Mathematical tables may be used to evaluate explicit numerical expressions.

This question paper consists of 13 printed pages and 3 blank pages.

Copyright: Zimbabwe School Examinations Council, N2006.

CZIMSEC N2006

[Turn over]

**Section A: [64 marks]**

Answer all the questions in this section.

## Question 1
### (a)

Evaluate \(5 \frac{1}{4}-1 \frac{2}{3} \times 2 \frac{1}{10}\), giving your answer as a mixed number in its lowest terms.

### (b)

Noma has \((4 x-3 y)\) dollars and Rudo has \((5 x-y)\) dollars. Find, in its simplest form, the amount of money

#### (i)

they have altogether,

#### (ii)

Rudo has more than Noma.

### (c)

If \(f(x)=x^{3}-3 x^{2}+k x-4\), find \(k\) given that \(f(3)=11\).

## Question 2
### (a)

Factorise completely

#### (i)

\(3 m p+n p-6 m q-2 n q\),

#### (ii)

\(16-9 r^{2}\).

### (b)

It is given that

\[
\mathrm{A}=\pi r\left(h^{2}-r^{2}\right)
\]

#### (i)

Make \(h\) the subject of the formula.

#### (ii)

Find the value of \(h\) when \(\mathrm{A}=330, r=7\) and \(\pi=\frac{22}{7}\).

## Question 3
### (a)

In a class of 40, every pupil studies at least one of the subjects Mathematics, Geography and Accounts.

4 pupils study Mathematics and Geography,

5 study Mathematics and Accounts,

7 study Geography and Accounts,

15 study Mathematics only,

13 study Geography only and

4 study Accounts only.

Find the number of pupils who study all the three subjects.

### (b)

Express \(\frac{b}{a^{2}-a b}+\frac{a}{b^{2}-a b}\) as a single fraction in its lowest terms.

### (c)

Solve the equation

\[
\frac{1}{2-m}-\frac{3}{m-4}=0
\]

## Question 4
![](https://ocr.unopasa.com/p/ocr_assets/5100bfad981fee162c176d847ee192c4537c3939b891149c75af5a58e66c189e.jpg)

Take \(\pi\) to be 3,142.

The diagram shows a clockface in the shape of two regular concentric octagons centre O. O, A and B are in a straight line, \(\mathrm{BO}=6 \mathrm{~cm}\) and \(\mathrm{AO}=5 \mathrm{~cm}\). The area between the octagons is decorated.

### (a)

Determine the size of \(A \hat{O} D\).

### (b)

Calculate

#### (i)

the area of \(\triangle A O D\),

#### (ii)

the area of \(\triangle \mathrm{BOC}\),

#### (iii)

the area that is decorated.

### (c)

Calculate the angle through which the minute hand turns in 18 minutes.

### (d)

If the length of the minute hand is 4 cm, calculate the distance the tip of the minute hand moves in 18 minutes.

## Question 5
### (a)

Given that \(\mathbf{M}=\left(\begin{array}{cc}4  |  -9  -2  |  5\end{array}\right), \quad \mathbf{N}=\left(\begin{array}{cc}1  |  3  0  |  -1\end{array}\right)\) and \(\mathbf{L}=\left(\begin{array}{cc}2 d  |  4  1  |  3\end{array}\right)\), find

#### (i)

\(\mathbf{M}+2 \mathbf{N}\),

#### (ii)

MN,

#### (iii)

the value of \(d\) which makes matrix L singular.

### (b)

![](https://ocr.unopasa.com/p/ocr_assets/0c851633cbe5019bf9f1bf57cd9c6a5328393087f27d152250e55cb93257f881.jpg)

In the diagram, PRT and OQT are straight lines. \(\overrightarrow{\mathrm{OP}}=2 p, \overrightarrow{\mathrm{OQ}}=3 q\) and \(\overrightarrow{\mathrm{PR}}=3 \mathbf{p}-\mathbf{q}\).

#### (i)

Express \(\overrightarrow{\mathrm{RQ}}\) as simply as possible in terms of \(\mathbf{p}\) and/or \(\mathbf{q}\).

#### (ii)

Given that \(\mathrm{PT}=m \mathrm{PR}\), express \(\overrightarrow{\mathrm{PT}}\) in terms of \(\mathbf{p}, \mathbf{q}\) and \(m\).

#### (iii)

Given also that \(\mathrm{OT}=n \mathrm{OQ}\) form an equation connecting \(\mathbf{p}, \mathbf{q}, m\) and \(n\). Hence find the value of \(m\) and the value of \(n\).

## Question 6
Answer the whole of this question on a sheet of plain paper.

Use ruler and compasses only for all constructions and clearly show all construction lines and arcs on a single diagram.

### (a)

Construct a quadrilateral ABCD in which \(\mathrm{AB}=4 \mathrm{~cm}, \mathrm{BC}=6 \mathrm{~cm}\), \(\mathrm{CD}=5 \mathrm{~cm}, \hat{\mathrm{ABC}}=135^{\circ}\) and \(\hat{\mathrm{BCD}}=120^{\circ}\).

### (b)

Measure and write down

#### (i)

the length of AD,

#### (ii)

\(\hat{B A D}\).

### (c)

Construct the locus of points

#### (i)

equidistant from AB and BC,

#### (ii)

3 cm from BC and on the same side of BC as A,

#### (iii)

4 cm from B.

**Section B: [36 marks]**

Answer any three questions from this section.

## Question 7
### (a)

Solve the equation

\[
2 x^{2}+6 x+1=0,
\]

giving your answers to 2 decimal places.

### (b)

A geographical globe has a diameter of 48 cm. A miniature model of the globe has a diameter of 8 cm.

#### (i)

Calculate the surface area of the model.

#### (ii)

On the globe, the map of Zimbabwe occupies an area of \(23,04 \mathrm{~cm}^{2}\). Calculate the corresponding area on the model.

### (c)

If the globes are solid, calculate the volume of the model.

Volume of a sphere …