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r % TEST CODE OI254O2O -l MAY/JUNE 20I7 FORM TP 2017037 CARIBBEAN EXAMINATIONS COUNCIL CARIBBEAN SECONDARY EDUCATION CERTIFICATE@ EXAMINATION ADDITIONAL MATHEMATICS Paper 02 - General Proficiency 2 hours 40 minutes Req uired Examination Materials Electron ic calculator (non-programmable) Geometry set Mathematical tables (provided) Graph paper (provided) DO NOT TURN THIS PAGE UNTIL YOU ARE TOLD TO DO SO. I READ THE FOLLOWING INSTRUCTIONS CAREFULLY. This paper consists of FOUR sections. Answer ALL questions in Section I, Section II and Section Ill. Answer ONE question in Section lV. Write your answers in the spaces provided in this booklet. Do NOT write in the margins. A list of formulae is provided on page 4 of this booklet. If you need to rewrite any answer and there is not enough space to do so on the original page, you must use the extra page(s) provided at the back of this booklet. Remember to draw a line through your original answer. If you use the extra page(s) you MUST write the question number clearly in the box provided at the top of the extra page(s) and, where relevant, include the question part beside the answer. 2. 4. 5. 6. 7 Copyright O 2015 Caribbean Examinations Council All rights reserved. I tilil ilil flilt ilil ilil ilil tffi lut ilil uil illt til 0125402003 ffi Lo, zs4o2o/F 2ot7 J : L. L l. I t i. i: ! i t' I :- f- c I i ! f- t: i i i: : i ] : ! : t L : l. ! I i : i i : i
Transcript
Page 1: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

r % TEST CODE OI254O2O-lMAY/JUNE 20I7FORM TP 2017037

CARIBBEAN EXAMINATIONS COUNCIL

CARIBBEAN SECONDARY EDUCATION CERTIFICATE@EXAMINATION

ADDITIONAL MATHEMATICS

Paper 02 - General Proficiency

2 hours 40 minutes

Req uired Examination Materials

Electron ic calculator (non-programmable)Geometry setMathematical tables (provided)Graph paper (provided)

DO NOT TURN THIS PAGE UNTIL YOU ARE TOLD TO DO SO.

I

READ THE FOLLOWING INSTRUCTIONS CAREFULLY.

This paper consists of FOUR sections. Answer ALL questions in Section I,Section II and Section Ill.

Answer ONE question in Section lV.

Write your answers in the spaces provided in this booklet.

Do NOT write in the margins.

A list of formulae is provided on page 4 of this booklet.

If you need to rewrite any answer and there is not enough space to do so on theoriginal page, you must use the extra page(s) provided at the back of this booklet.Remember to draw a line through your original answer.

If you use the extra page(s) you MUST write the question number clearly inthe box provided at the top of the extra page(s) and, where relevant, includethe question part beside the answer.

2.

4.

5.

6.

7

Copyright O 2015 Caribbean Examinations CouncilAll rights reserved.

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Page 2: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

-lt- -4-

LIST OF FORMULAE

Arithmetic Series

Geometric Series

Circle

Vectors

Trigonometry

Differentiation

Statistics

Probability

Kinematics

012540201F 2017

Tn:a+(n-l\d s,: +[za + (n - t)d]

a(r" - l) S-:#, -l <r < I or lrl < IT:afl S : r-

x2 + f +2fx+29+ c:0 (x+J)'+ (y+ g)2:f

nvV:-

lvl

d

cos d: a'blal x lbl

lvl (x'+f) wherev:xi+yj

sin (l + B) = sin I cos.B + cos A sin B

cos (l + B):- cos I cos .B T sin A sin B

tan(A+B)= +ffi

{ A. + b)': an(ax + g)n-r

sln .x : cos.rd,r

d

dJ cos.r : -srn.r

n n n

f,x2,,,*,----ii--,

Ir,,-i)' I 2xx(r)', n .y:

!,r

P(A w B): P(A) + P(B) - P(A a B)

v:U*At v2:U2+2AS

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nnI "f,

s:ut*!rr

IL 0125402004

Page 3: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

-lt- -5-

01254020tF 2017

NOTHING HAS BEEN OMITTED

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-JH#

L 0125402005

Page 4: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

-lr -6-

SECTION I

Answer BOTH questions.

ALL working must be clearly shown.

l. (a) The function/is defined by

2x+ p"f (x): ,x+ | andp is a constant.x-

01254020/F 2017

(i) Determine the inverse of f (x)

(ii) Ifl-r (8): 5, find the value ofp.

r lffi I]l ilil illll llll llll illl illfl l]ll lffi llil lil

(2 marks)

(1 mark)

GO ON TO THE NEXT PAGE

JL 0125402006

Page 5: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

-lr -7 -

(b)

012540201F 2017

Given thattheremainderwhen/(x) -x3 -f -ax +b isdivided byx+ I is6,andthatx - 2 is a factor, determine the values of a and b-

(4 marks)

GO ON TO THE NEXT PAGE

ffiI illtil til] ilil illl tilil !ilt tffi ilil ilil !ilt tlt til JL 0125402007

Page 6: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

r -8-

The values of the variables P and x in Table I obtained from an experiment are thoughtto obey a law of the form P : Ax-h.

TABLE I

x r.58 2.51 3.98 6.30 10.0

P 121.5 I 10.6 106.2 99.1 93.8

(i) Use logarithms to reduce the equation to linear form.

(1 mark)

(ii) Using a suitable scale, plot the best fit line of the equation in (c) (i) on the graphpaper provided on page 9. Use the space below to show your working.

(3 marks)

(iii) Hence, estimate the constants A and k,

(3 marks)

Total 14 marks

GO ON TO THE NEXT PAGE

-l(c)

0t2540201F 2017

JL 0125402008

Page 7: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

r -l

GO ON TO THE NEXT PAGE012540201F 20t7

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Page 8: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

-lr - l0 -

2. (a) The quadratic equation 2x2 + 6x + 7 : 0 has roots o and B.

Calculate the value "t + . +

(b) Determine the range of values of x for which ',f ! ? aox* I

012540201F 2017

ililil il] ffi ilu tilfl ]il ilil ll]t ill ll]t ililil

(4 marks)

(4 marks)

GO ON TO THE NEXT PAGE

JL 0125402010

Page 9: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

-lr - 1l -

An accountant is offered a five-year contract with an annual increase. The accountantearned a salary of $53 982.80 and $60 598.89 in the third and fifth years respectively. Ifthe increase follows a geometric series, calculate

(i) the amount paid in the first year

(4 marks)

(ii) the TOTAL salary earned at the end of the contract.

(2 marks)

Total 14 marks

GO ON TO THE NEXT PAGE

ffi

(c)

012540201F 2017

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Page 10: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

-lr -12-

SECTION II

Answer BOTH questions.

ALL working must be clearly shown.

A circle C has an equation x2 + f + 4x -2y -20:0.

(i) Express the equation in the form (x + -f)t + (y + g)t : f

3. (a)

01254020/F 2017

(ii) State the coordinates of the centre and the value of the radius of circle C.

(2 marks)

(2 marks)

GO ON TO THE NEXT PACE

I tilil ilt ll]t ilu ilil l]t ffi ilIlt ilil ilil ill til JL 0125402012

Page 11: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

r - 13 -

(iii) Determine the points of intersection of circle C and the equation !: 4 - x

-l

ffiiH

(b)

012s4020tF 2017

Civen that p : 2i + 3j and g : i + 5j, determine

(i) the product of the two vectors, p and q

(ii) the angle between the two vectors

r ll]il ill ilil ilil tilil tilt tilll il]t il] tilt til ilt

(4 marks)

(1 mark)

(3 marks)

Total 12 marks

GO ON TO THE NEXT PAGE

JL 0125402013

Page 12: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

r -14- .l4. (a)

0t2540201F 2017

Figure I shows a plot of land, ABCD (not drawn to scale). Section ABC is used forbuilding and the remainder for farming. The radius BC is l0 m and angle BCD is a right

angle.

Al0m

c

Figure I

D

(i) If the building space it 59' m2, calculate the angle ACB in radians'3

(ii) Working in radians, calculate the area used for farming.

GO ON TO THE NEXT PAGE

(1 mark)

(4 marks)

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Page 13: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

r - t5 - -l(b) Civen that

srn

012540201F 2017

. 71 7r ''[1Sltl

- : COS'"'4 -""4 2'

7t fi32

I

27t

Jand

show without using a calculator that

cos 7t 7t

43 \/6+'tz

ffi

-1*sln =4- 2..[1

)

r rilfl 1ilil illll lllll illll lill !]ll llil llll llil llll llll

(4 marks)

GO ON TO THE NEXT PAGE

JL 0125402015

Page 14: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

r - 16 - -l(c) Prove the identity

01254020/F 2017

. cos2 0l--:SlnUI +sin0

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(3 marks)

Total 12 marks

JL 0125402016

Page 15: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

r -17-

SECTION III

Answer BOTH questions.

ALL working must be clearly shown.

5. (a) Differentiate the expression (l + 2x)3 (x + 3) with respect to.x, simplifying your answer,

(4 marks)

(b) The point P (-2,0) Iies on the curve/:3x3 + 2x2 -24x. Determinethe equation of thenormal to the curve at point P.

(5 marks)

GO ON TO THE NEXT PAGE012540201F 2017

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ffiJL 0125402017

Page 16: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

r - 18 -

Water is poured into a cylindrical container of radius l5 cm. The height of the waterincreases at a rate of 2 cms-r. Given that the formula for the volume of a cylinder isnf h, determine the rate of increase of the volume of water in the container in terms of n.

(5 marks)

Total 14 marks

GO ON TO THE NEXT PAGE

-l(c)

01254020/F 2017

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Page 17: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

-lr -t9-

6. (a) Show that

(b)

012540201F 2017

frT I '[1+Z(sinx+4cosx)dx:-Z -0

r rilil ilt ll]t ilil ilil ilil ltil ll]r il] lllll llll ffi

(4 marks)

(3 marks)

GO ON TO THE NEXT PAGE

I

Determine the equation of a curve whose gradient function + : x * 2, andwhich passes

through the point P (2,3).

ffi IL 0125402019

Page 18: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

rI

2

(c) Evaluate (4 - x)2 dx.

(d)

01254020tF 20t7

-20-

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-l

(3 marks)

Calculate the volume of the solid formed when the area enclosed by the straight line

y : + and thex-axis forx : 0 tox = 6 is rotated through 2x aboutthex-axis.

(4 marks)

Total 14 marks

GO ON TO THE NEXT PAGE

IL 0125402020

lkl'.|!ra'-

.I+::H.::rtiij:8+:-s:ihi.:.(}i:8.is-:,*:

i,i ri:=

.t.:{_\ai.

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-Ell:.F.::E.,:g:iie.r

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liti:l-rif::lhf:.f(.-'-Sii,-+..j'.._h-_-i

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Page 19: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

-lr

7. (a)

-2t -

SECTION IV

Answer only ONE question.

ALL working must be clearlY shown.

The probability of a final-year college student receiving a reply for an internship programme

from three accounting firms, Q, RandS, is 0.55, 0.25 and 0.20 respectively. The probability

that the student receives a reply from firm Q and is accepted is 0.95. The probability that

a student receives a reply from firms R and S and is accepted is 0.30 for each of them.

(i) Draw a tree diagram to illustrate the information above

(4 marks)

(ii) Determine the probability that the student will be accepted for an internship

programme.

(4 marks)

GO ON TO THE NEXT PAGE

ffi 012540201F 2017

r lllilt !ilt illl lllll illl lllll illl lllll illl lllll llll lil JL 0125402021

Page 20: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

I- -22-

Table 2 shows the length, in cm, of 20 spindles prepared by a carpenter to build a railingfor an existing staircase.

TABLE 2

1.5 3.2 6.1 9.4 I 1.0 12.6 17.0 18.5 20.2 24.4

25.2 25.2 28.3 28.8 29.1 30.4 32.5 34.6 38.3 38.4

Determine

(i) the mean length

(2 marks)

(ii) the modal length

(l mark)

(iii) the median length

(l mark)

(iv) the interquartile range for the data.

(2 marks)

GO ON TO THE NEXT PAGE

-l(b)

0t254020tF 20t7

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Page 21: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

r -23- -l

A school cafeteria sells 20 chicken patties, l0 lentil patties and25 saltfish patties daily.

On a particular day, the first student ordered 2 patties but did not specify the type. The

vendor randomly selects 2 patties.

(i) Calculate the probability that the first patty selected was saltfish.

(4 marks)

(ii) C iven that the first patty was saltfish, calculate the probability that the second patty

was NOT saltfish.

(2 marks)

Total20 marks

GO ON TO THE NEXT PAGE

(c)

012540201F 2017ffiililillilllillllllllllllllllllllllilllllllllll illlllll IL 0125402023

Page 22: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

-lr -24 -

8. (a) The displacement, s, of a particle from a fixed point, o, is given by s : /3 - ]r-2,metres at time, / seconds.

(i) Determine the velocity of the particle at t : 3.5 s, clearly stating the correct unit.

(3 marks)

(ii) If the particle is momentarily at rest, find the time, /, at this position

(3 marks)

CO ON TO THE NEXT PAGE01254020/F 2017

ililil til] tililffi ]ililil[ffi il]ilil tilflil til JL 0125402024

Page 23: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

r -25 -

A vehicle accelerates uniformly from rest for 75 m then travels for another 120 m at its

maximum speed. The vehicle later stops at a traffic light. The distance from rest to the

traffic light is 240 m and the time for the journey is l5 seconds.

i) In the space below, sketch a velocity-time graph to illustrate the motion of the

vehicle.

(3 marks)

CO ON TO THE NEXT PAGE

-l(b)

0t2540201F 2017

(

ffiI iltil ilu flil illll lilll lill llil il]l lilll llill ffi llll IL 0125402025

Page 24: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

-lt- -26 -

(ii) Calculate the length of time the vehicle maintains constant speed.

GO ON TO THE NEXT PACE

I tiltil ilil ilt! illl ilil ilfi ffi il]t IIllI ffi !il ril

(7 marks)

012540201F 2017

JL 0125402026

:llrr'-:.=-i-::n-'-.-'-:..

-:-:-.--1-

i..:=a-aaaa'

=r..---$.#'.-i+:-_-_-_-Y

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:H-'A--.--ElEjH.'.v-.-.rr+i.-.-.-'-'.i.

Page 25: L. L I -l · r - 1l --l An accountant is offered a five-year contract with an annual increase.The accountant earned a salary of $53 982.80 and $60 598.89 in the third and fifth years

-lr -27 -

(iii) Calculate the maximum velocity attained

(iv) Determine the acceleration of the vehicle.

(2 marks)

(2 marks)

Total20 marks

END OF TEST

IF YOU FINISH BEFORE TIME IS CALLED, CHECK YOUR WORK ON THIS TEST.

012540201F 20t7

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0125402027 J


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