2nd Exam Revision(2)_4B

8/13/2019 2nd Exam Revision(2)_4B

http://slidepdf.com/reader/full/2nd-exam-revision24b 1/14

Name: ___________ Teacher: WL Cheng

Class : 4B

Lesson No.: 29

Sekolah Menengah Seri Omega Date : !"#"$%

Time : 9.2$ & $.!$

S'()ect: Mathematics

Cha*ter: +

To*ic: ,e-ision 2/

S'(+to*ic: +

Section A 040 marks1

Answer all questions.

. ,o'n o33 2 9$$ correct to three signi3icant 3ig'res.

5 ! C 2$$

B 2$ D !$$$

2.

The iagram sho6s a circle 6ith iameter PQ. 7in the area8 in cm28 o3 the circle an

correct to three signi3icant 3ig'res. 0Take π !.421

5 2. C 2.% B 2.# D 2.%

!.

;n the a(o-e iagram 8 ABC is a right angle triangle. 7in the length o3 5B8 correctto ! signi3icant 3ig'res.

5 !.$ C !.$%

B !.$# D !.$9



4. 7in the -al'e o34

#%$$

.2 < $−

an e<*ress the ans6er in stanar 3orm.

5 . < $# C . < $9

B . < $% D . < $$

. 7in the -ol'me8 in cm!8 o3 a c'(e 6ith eges 4$$ cm an e<*ress the ans6er in

stanar 3orm.

5 . < $ C .4 < $#

B .4 < $ D . < $%

. The rai's o3 a s*here is 2. m. 7in the -ol'me8 in cm!8 o3 the s*here correct to

t6o signi3icant 3ig'res an e<*ress the ans6er in stanar 3orm.

0Take22

#π = 1

5 !.% < $ C !.9 < $#

B !.9 < $ D 4.2 < $#

#. # + 2 y/! y

5 # + y C 2 + ! y2

B #+ y2 D 2 y + y2

%. + w/! + 2w/

5 ! + !w - 2w2 C 2w2 = !w = !

B ! + 2w = 2w2 D 22 !w w− +

2$#!!.oc 2



9. 5 rectangle has sies 3x = / cm an 4 x cm. The area8 in cm28 o3 the rectangle

in terms o3 x is

5 2! x + C 2

2 4 x +

B 24 4 x + D 22 4 x x+

$. 7actorise com*letel> ( ) ( )2

p p p+ − + .

5 p + / C = p/ + p/

B = p/ D + p/ p=/

. 7actorise com*letel> r 2 - r = 9.

5 r + !/r + !/ C r - 9/ r = /

B r + l/r + 9/ D r + !/r = !/

2. Sol-e the e?'ation x2 - ! x = 2 $.

5 x l or x 2 C x = +2 or x = +

B x or x = +2 D x 2 or x +

2$#!!.oc !



!. The length o3 a rectang'lar room is ! m more than the (reath. The area o3 the room is 2#$ m2. The length o3 the room is

5 C 2

B 9 D %

4. The s'm o3 a n'm(er an its s?'are is . The n'm(er is

5 C %

B # D

. @i-en that N = Acommon 3actors o3 9 an 248 list all the elements o3 N.

5 A8 ! C A8 !8 48 8 9

B A8 !8 9 D A8 !8 48 8 %8 9

. Which o3 the 3ollo6ing is an em*t> set

5 P = Aoctagons ha-ing eight sies B Q A*er3ect s?'ares (et6een 4$ an $/

C R Ao n'm(ers i-isi(le (> 2

D Atriangles ha-ing t6o e?'al sies

2$#!!.oc 4



#. @i-en that ξ A x: ! ≤ x ≤ 98 x is an integer an ! =A x : x is a *rime n'm(er8

list all the elements o3 M.

5 A28 !8 C A28 !8 8 #

B A!8 8 # D A!8 8 #8 9

%. @i-en that the 'ni-ersal set ξ A x: ! ≤ x ≤ 98 x is an integeran

B A3actors o3 28 3in ( ) .n B

5 4 C

B D #

9.

The Eenn iagram sho6s the n'm(er o3 elements in the 'ni-ersal

set ξ 8 set F8 set Q an set R. 7in ( )n P Q R∩ ∪ .

5 ! C

B 4 D #

2$#!!.oc



2$.

The Eenn iagram sho6s the n'm(er o3 elements in set F8 set Q an set R. @i-en that

the 'ni-ersal set P Q Rζ = ∪ ∪ an ( ) ( )n P Q n R∩ = 8 the -al'e o3 x is

5 C #

B D 9

2. Which o3 the 3ollo6ing is a tr'e statement

5 is a *rime n'm(er. C ! is a m'lti*le o3 9.

B 49 is a *er3ect s?'are. D is a 3actor o3 .

22. 5ll the 3ollo6ing statements are tr'e except

A 5ll *arallel lines ha-e the same graients.

B 5ll right *>ramis ha-e rectang'lar (ase. C 5ll cones ha-e one -erte<.

D 5ll he<agons ha-e si< sies.

2!. Which con-erse o3 the 3ollo6ing im*lications is tr'e

5 ;3 x " 8 then x " $.

B ;3 p = 8 then 4p = 2$.

C ;3 > is an ac'te angle8 then y G %$H. D ;3 q is an integer8 then q2 is an integer.

2$#!!.oc



24. Premise : 5ll rhom('ses ha-e 3o'r e?'al sies.

Premise 2: ..................

Con#lusion: $%&' (as 3o'r e?'al sies. Com*lete the *remise in the a(o-e arg'ment.

5 $%&' is a rhom('s. B $%&' has 3o'r e?'al sies.

C 5ll rhom('ses are $%&'.

D $%&' has 3o'r *arallel sies.

25 . @i-en that the n'm(er o3 s'(sets o3 a set 6ith n elements is 2n8 6hat can >o'

concl'e a(o't the n'm(er o3 s'(sets o3 set P A!8 48 #8 9

5 The n'm(er o3 s'(sets o3 F is 4.

B The n'm(er o3 s'(sets o3 F is %.

C The n'm(er o3 s'(sets o3 F is 9. D The n'm(er o3 s'(sets o3 F is .

2. @i-en 48 #8 28 ... an

4 2 = ! # 22 = !

2 !2 = !

7in the 9th term in the se?'ence sho6n a(o-e.

5 4 C %

B # D %4

2#.

;n the a(o-e iagram8 the graient o3 line PQ is

5 C !

B 2 D 4

2$#!!.oc #



2%.

Calc'late the graient o3 the straight line that *assing thro'gh the *oints +!8 +!/

an #8 2/ in a(o-e iagram.

5

4− C

2

B

$− D 2

29. @i-en that *oints 48 4/8 8 r/ an #8 +2/ lie on the same straight line8 3in the -al'e o3 r.

5 $ C 2

B D 4

!$. The graient o3 straight line $% is +4. @i-en *oints I!8 $/ an 7$8 q)* calc'late

the -al'e o3 q.

5 +2 C 9

B +9 D 2

2$#!!.oc %



!.

;n the a(o-e iagram sho6s a straight line8 $%&. 7in the coorinates o3 *oint @8 i3

*oint & lies on the x+a<is.

5 $8!/ C 8$/

B !8 $/ D 98$/

!2. The graient o3 the straight line 2 x - ! y = 2 is

52

!− C

2

!

B

! D

!

2

!!. 7in the -al'e o3 m* i3 the t6o straight lines 2 y = 4 x = +! an y mx = ! are

*arallel.

5 +4 C

!

B +2 D 4

2$#!!.oc 9



!4.

Class interval

2+29

!$+!4

!+!9

Com*lete the class inter-als gi-en in the ta(le .

5 !9+4$ C 4$+44

B !9+44 D 4+49

!.

Mass (kg)

42+4

4#+

2+

#+

Determine the '**er (o'nar> o3 the class inter-al # + in the ta(le .

5 #.$ C .$

B #. D .

!.

Length (cm) Frequency

$$+$9 4

$+9 %

2$#!!.oc $



2$+29 $

!$+!9 *

4$+49 2

Base on the 3re?'enc> ta(le in ta(le 8 3in the -al'e o3 p i3 the mean length is

22. cm.

5 C %

B # D 9

Question 3+* Question 3, an Question 3 are /ase on ia1ram /elow.

The a(o-e iagram sho6s the time taken (> a gro'* o3 r'nners to com*lete a $$+m

r'n.

!#. The total n'm(er o3 r'nners in-ol-e in the race is

5 2 C 4

B !$ D $

!%. Calc'late the mean time taken to com*lete the $$+m r'n.

5 !.$ C 4.$

B !.2 D4.

2$#!!.oc



!9. Determine the n'm(er o3 r'nners 6ho took more than 4 secons to com*lete the r'n.

5 C $

B D 2

4$.

Scres Cumulative

Frequency2$+29 2

!$+!9

4$+49 !

$+9 2

$+9 2

Base on the a(o-e ta(le8 calc'late the mean score. 5 4!.# C 4#.#

B 4.# D 4%.#

Section B 0 $ marks1

Answer five questions 2rom t(is se#tion.

.

2$#!!.oc 2



P 8 Q an R are three sets 6here the n'm(er o3 elements in each o3 them are sho6n in

the Eenn iagram. @i-en ( ) 29n P R∪ = an ( ) !9n ξ = 8 3in

a/ the -al'e o3 x8

(/ the -al'e o3 y *

c/ ( ) n P Q R∩ ∩

/ ( ) n P R∩

e/ ( )n P Q R∪ ∩

02 marks1

2. i/ Write each o3 the 3ollo6ing ?'aratic e?'ations in general 3orm.

a/!

2

k k

k

+− =

−

2$#!!.oc !



(/

2 !r r

− = 04 marks1

ii/ Sol-e each o3 the 3ollo6ing ?'aratic e?'ations.

a/2

2

x

x

=

+

(/

#

− = 04 marks1

iii/

The iagram sho6s t6o rectangles 6ith e?'al area. 7in the -al'e o3 a. 04 marks1

2$#!!.oc 4

Documents

2nd Exam Revision(2)_4B