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Predictive analytics have long lived in the domain of statistical tools like R. Increasingly, however, as companies struggle to deal with exploding volumes of data not easily analyzed by small data tools, they are looking at ways of doing predictive analytics directly inside the primary data store.
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TESDA TM1 REVIEWER FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...
09 trial jpwp_s2
1. SULIT 3472/2
JABATAN PELAJARAN WILAYAH PERSEKUTUAN KUALA LUMPUR
PEPERIKSAAN PERCUBAAN
SIJIL PELAJARAN MALAYSIA 2009
SKEMA PEMARKAHAN
MATEMATIK TAMBAHAN
Kertas 2
3472/2 @ 2009 Hak Cipta JPWP SULIT
2. SULIT
SECTION A
Solution Sub Full
Question
Mark Mark
1. x 5 2y 5 x 1
y
2 2
3x y 5 2y 1
5 x 1
3x 2 x 1
10 y 2 55 y 74 0 2
5x2 5x 2 0
2
55 ( 55) 4 10 74 1
y 2
2 10 5 5 45 2
x
25 1
y 3.153 , 2.347
x 0.306 , 1.306
x 1.306 , 0.306
y 2.347 , 3.153 1
5
2.
2(5.5) 5(15.5) 11(25.5) h(35.5) 6(45.5)
(a) 30.25 ..........
2 5 11 h 6 1, 1
h = 16 ........................ 1
(b) fx 2 2(5.5 2 ) 5 15.5 2 11 25.5 2 16 35.5 2 6 45.5 2 ..... 1
41000
30.25 2 ................................................................... 1
40
= 10.485 1
.........................................................................................
1 7
(c) 10.485 ..............................................................................................
3.
(a) P(-8, 0) and Q(0, 4) ………………………………………. 1
S( -4, 2) …………………………………………………… 1
1 0 0 4 2 0
(b) Area of OQSR =
2 0 4 2 0 0
1
= (0 0 0 0) (0 16 4 0) ………..
2 1
= 10 ………………………………………… 1
3( 2) 2 x 3(0) 2 y ………………………
(c) 4, or 2 1
5 5
T =(-7, 5) ………………………………………………
1
6
3472/2 @ 2009 Hak cipta JPWPKL
SULIT
3. SULIT 3472/2
4. (a) List of perimeters ; 4x, 8x, 16x,
T2 T3
2 ……………………………………………………… 1
T1 T2
1
This is Geometric Progression and r = 2 …………………………..
1
(b) 10240 4 x(2) 9 .......................................................................
x = 5................................................................................ 1
(c) List of numbers of squares: 1, 4, 16,
1(44 1) 1(45 1) 1(410 1)
Find S 4 or S5 or S10 ...... 1
4 1 4 1 4 1
410 1 44 1
S10 S4 ...........................................
4 1 4 1 1
= 349440............................................................... 1 7
5.
dy 1
(i) 8 x 3 …………………………………………..
dx
8 x 3 13 …………………………………………… 1
x 2
A(2, 5) …………………………………………… 1
(ii) 13(5) + 2 = k ………………………………………… 1
k = 67 ……………………………………….. 1
(iii) y 5 13( x 2) or c 21 …………………….. 1 7
y = 13x – 21 ………………………………………. 1
6. (a) cos 2 x 1 2 sin 2 x or cos 2 x 2 cos 2 x 1 1
2 sin 2 x sin 2 x
or
2 cos 2 x cos 2 x
and
1
tan 2 x
(b) Refer to attachment
[Lihat sebelah
3472/2 @ 2009 Hak Cipta JPWPKL SULIT
4. SULIT
BAHAGIAN B
Sub Full
Question Solution
Mark Mark
7.
Refer to attachment
8.
(a) (i) BD BA AD or ………………….
8 y 4 x ………………………………….…… 1
1
(ii) BC BD DC
8 y 4x 4 y
4 y 4 x …………………………………….……
1 3
(i) AP AK KP
1
AB n AD ………………………………..…… 1
3
8
y 4n x …………………………………….…… 1
3
(ii) Let AP m AC
8 …………………………… 1
y 4n x m( AB BC )
3
m 4 y 4 x …………………………… 1
8
Then 4m and 4m 4n ………………… 1 7
3
2 2 ……………………… 1,1
m and n 10
3 3
9.
15 …………………………………… 1
(a) KML 2 sin
8
KML 2 0.6751
…………………………………… 1 2
1.3503 rad
(b) Arc LAK = 8( KML ) …………………………………… 1
= 10.8024 cm
Arc KBL = 5( ) ……………………………………
1
Perimeter = 10.8 + 5
= 26.51 cm …………………………………… 3
1
3472/2 @ 2009 Hak cipta JPWPKL
SULIT
5. SULIT 3472/2
(c) Find area of segment
1 2
8 1.3503 sin 1.3503 ……..…………....................…. 1, 1
2
11.9844 cm 2
or
Area of sector MKAL - Area ∆ KML
1 1 1, 1
= (8)²(1.3503) - (10) ( 8 2 5 2 ……..…………........….
2 2
= 43.21 cm2 - 31.225 cm²
Area of semicircle KBL =
= 11.985 cm²
1 2 ……..…………........….
Area of semicircle KBL = 5 1
2
= 39.27 cm²
5
Area of shaded region = (area of semicircle) – (area of segment) 1
= 27.29 cm² 1 10
10. (a) x(c) – 5 ) = 0 -----------------------------------------------------
( 3x 1
5 4
Q , …………………………………………………… 1 2
3 9
5
1 4 5 2
(b) 1 3 x 1 dx ……..……….................…. 1, 1
2 9 3 0
or
5
x
3 1 x2 2x 1 dx ……..……….................….
0 3 1, 1
5
5
3 x2 x dx
0 3
5
x3 5 2 3
x ……..…………....................…. 1
3 6 0
3 2
5 5
5 1
3 3 ……..…………....................….
3 6
125 1
/ 0.7716 ……..…………....................…. 5
162
[Lihat sebelah
3472/2 @ 2009 Hak Cipta JPWPKL SULIT
6. SULIT
1
……..…………....................…. 1
(c) V ( x 1) 4 dx
0
1
( x 1)5 1
V ……..…………....................….
5 0
1 ……..…………....................…. 1 3
5 10
11. (a) (i) h = 52 1
k 52 ……..…………........................................….
(ii) 1.2 ……..…………........................................…. 1
5
k 58 ……..…………........................................…. 1 3
48 52
(b) P( z 1.2)
5 or ……....................................…. 1
P ( 0 .8 z 1 .2 ) 2
0.673 ……..………….................................................…. 1
(c) (i) P( X 56)
P( z 0.8)
……..…………........................................…. 1
0.7881
No of students = 200 (0.7881)
= 157 / 158 ……....................................…. 1
(ii) P( X m) 0.05
m 52 ……....................................….
1.645 1,1
5
m 60.225
……....................................…. 5
m 60 / 61 1
10
SECTION C
12. dv
(a) a 10 6t
dt
1
10 6t 0
5
t
3
2 1
5 5
Then v 8 10 3
3 3
1 1 3
v
3
(b) When v = 0 , 8 – 10t + 3t² = 0 1
(3t – 4)(t – 2)= 0
1 2
3472/2 @ 2009 Hak cipta JPWPKL
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7. SULIT 3472/2
4
t 2 or
3
(c) s v dt 8t 5t 2 t3
1
s 8(2) 5(2) 2 (2) 3 2
When t=2, 1
4m.
(d) When t 4, s 8(4) 5(4) 2 (4) 3
s 16m
2 3 Either
4 4 4 4
When t ,s8 5 one
3 3 3 3 1
112
s // 4.148m
27
Total dis tan ce 4.148 (4.148 4) 16 4 1
3
440 1
16.296m // 16.3 //
27 10
13.
AC 6.66 1
(a) AC 6.770 cm
sin 68.36 sin 66.13
3 3
AB AC 6.770 10.155 cm 1
2 2
1 1,1
CB 10.155 3.385 cm
3 4
(b) BAD 45.51o 1
CD 6.66
CD 5.1955 cm 1
sin 45.51 sin 66.13
BD 2 3.385 2 5.1955 2 2 3.385 5.1955 cos113.87 1
4
BD 7.2584 cm 1
1
(c) Area 6.66 10.155 sin 45.51 1 2
2
24.124 cm 2 1 10
[Lihat sebelah
3472/2 @ 2009 Hak Cipta JPWPKL SULIT
8. SULIT
14.
Refer to attachment
10
15 100
(a) (i) Price A 56 RM 40 1,1
140
I 08 I 08 I 03
I 00 I 03 I 00
110 105 1
(ii) I 08 100
100 100
115.5 1 4
(b) (i) x = 30 1
(140 35) (110 25) (120 30) (10 y )
123 1,1
(ii) 100
y 105 1
123
252 1
(iii) Price of toy = 100
309.96 1 6
10
3472/2 @ 2009 Hak cipta JPWPKL
SULIT
9. y Question 14
(a) 50x + 40y 4000 1
SULIT 5x + 4y 400 3472/2
100
10x + 30y 600 1
x + 3y 60
90
3y 4x + 60 1
5x+4y=400 (b) Draw correctly any straight line 1
80 All three straight lines are correct 1
Shaded region 1
(c) (i) 15 x 48 1
70 (ii) Use 30x + 10y where (x,y)
as point in the shaded region 1
3y=4x+60 Maximum point = (31, 61) 1
Maximum profit = RM 1540 1
10
60
50
40
30
R
20
x+3y=60
10
x
0 10 20 30 40 50 60 70 80
[Lihat sebelah
3472/2 @ 2009 Hak Cipta JPWPKL SULIT
10. SULIT
y
Question 6(b)
3
2
1
0
3 2
2 2
1
3
2
Graph cosine…………………….1
2 cycle between 0 to 2 …………1
Maximum and minimum values….1
3 x
cos 2 x 1
2
3 x
cos 2 x 1
2
x
The equation of straight line is y 1 ………………………………………...1
Draw the straight line, correct gradient or passed through y-intercept at 1………1
No of solutions = 4………………………………………………………………..1
3472/2 @ 2009 Hak cipta JPWPKL
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11. SULIT 3472/2
y
y – 2.8 – 2.1 – 1.5 – 0.7 0.7 1.5
x
Question 7 x
4 Table …………………….1
y
Graph against x………1
x
Plot all the points correctly …………2
3 (if 1 point is plotted wrongly ……….1)
Line of best fit ………1
2
1
0
x
1 2 3 4 5 6 7 8
–1
–2
–3
–4 y p
x q ………….1
x q
q = -3.55 (accept -3.65 to -3.45)……1
p
gradient found .........................1
q
p 2.556 (accept 2.628 2.484) ……1
From graph, x = 6.6
y = 7.92 ……..1 10
[Lihat sebelah
3472/2 @ 2009 Hak Cipta JPWPKL SULIT