Year 10 Maths. Semester One Revision Booklet.

Similar documents
MCH T 111 Handout Triangle Review Page 1 of 3

PYTHAGORAS THEOREM WHAT S IN CHAPTER 1? IN THIS CHAPTER YOU WILL:

UNCORRECTED SAMPLE PAGES. surds NUMBER AND ALGEBRA

MATHEMATICAL METHODS (CAS) Written Examination 1

Numbers and indices. 1.1 Fractions. GCSE C Example 1. Handy hint. Key point

Algebra 2 Semester 1 Practice Final

APPROXIMATION AND ESTIMATION MATHEMATICAL LANGUAGE THE FUNDAMENTAL THEOREM OF ARITHMETIC LAWS OF ALGEBRA ORDER OF OPERATIONS

SPECIALIST MATHEMATICS

Preliminary preparation

SPECIALIST MATHEMATICS

SPECIALIST MATHEMATICS

Surds and Indices. Surds and Indices. Curriculum Ready ACMNA: 233,

SPECIALIST MATHEMATICS

PAIR OF LINEAR EQUATIONS IN TWO VARIABLES

Probability The Language of Chance P(A) Mathletics Instant Workbooks. Copyright

GM1 Consolidation Worksheet

SPECIALIST MATHEMATICS

Lesson 2.1 Inductive Reasoning

QUADRATIC EQUATION. Contents

Probability. b a b. a b 32.

Grade 6. Mathematics. Student Booklet SPRING 2008 RELEASED ASSESSMENT QUESTIONS. Assessment of Reading,Writing and Mathematics, Junior Division

CS 491G Combinatorial Optimization Lecture Notes

Geometry of the Circle - Chords and Angles. Geometry of the Circle. Chord and Angles. Curriculum Ready ACMMG: 272.

Unique Solutions R. 4. Probability. C h a p t e r. G l a n c e

CS 2204 DIGITAL LOGIC & STATE MACHINE DESIGN SPRING 2014

Perimeter and Area. Mathletics Instant Workbooks. Copyright

20 b The prime numbers are 2,3,5,7,11,13,17,19.

Applied. Grade 9 Assessment of Mathematics. Multiple-Choice Items. Winter 2005

Plotting Ordered Pairs Using Integers

Edexcel Level 3 Advanced GCE in Mathematics (9MA0) Two-year Scheme of Work

MATH 122, Final Exam

H SERIES. Algebra Basics. Algebra Basics. Solutions. Curriculum Ready.

SPECIALIST MATHEMATICS

SPECIALIST MATHEMATICS

18.06 Problem Set 4 Due Wednesday, Oct. 11, 2006 at 4:00 p.m. in 2-106

Activities. 4.1 Pythagoras' Theorem 4.2 Spirals 4.3 Clinometers 4.4 Radar 4.5 Posting Parcels 4.6 Interlocking Pipes 4.7 Sine Rule Notes and Solutions

Solutions for HW9. Bipartite: put the red vertices in V 1 and the black in V 2. Not bipartite!

SECTION A STUDENT MATERIAL. Part 1. What and Why.?

Section 1.3 Triangles

SIMPLE NONLINEAR GRAPHS

SPECIALIST MATHEMATICS

Lecture 6: Coding theory

1 PYTHAGORAS THEOREM 1. Given a right angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

5. Every rational number have either terminating or repeating (recurring) decimal representation.

TOPPER SAMPLE PAPER - 5 CLASS XI MATHEMATICS. Questions. Time Allowed : 3 Hrs Maximum Marks: 100

Inspiration and formalism

CARLETON UNIVERSITY. 1.0 Problems and Most Solutions, Sect B, 2005

Counting Paths Between Vertices. Isomorphism of Graphs. Isomorphism of Graphs. Isomorphism of Graphs. Isomorphism of Graphs. Isomorphism of Graphs

Part I: Study the theorem statement.

Factorising FACTORISING.

Bridging the gap: GCSE AS Level

AP CALCULUS Test #6: Unit #6 Basic Integration and Applications

THE PYTHAGOREAN THEOREM

1 Find the volume of each solid, correct to one decimal place where necessary. 12 cm 14 m. 25 mm. p c 5 ffiffiffi

Instructions. An 8.5 x 11 Cheat Sheet may also be used as an aid for this test. MUST be original handwriting.

3 Angle Geometry. 3.1 Measuring Angles. 1. Using a protractor, measure the marked angles.

APPENDIX. Precalculus Review D.1. Real Numbers and the Real Number Line

for all x in [a,b], then the area of the region bounded by the graphs of f and g and the vertical lines x = a and x = b is b [ ( ) ( )] A= f x g x dx

Perimeter, area and volume

Ch. 2.3 Counting Sample Points. Cardinality of a Set

Area and Perimeter. Area and Perimeter. Solutions. Curriculum Ready.

Letter STUDENT NUMBER SPECIALIST MATHEMATICS. Number of questions and mark allocations may vary from the information indicated. Written examination 1

Trigonometry Revision Sheet Q5 of Paper 2

Mid-Term Examination - Spring 2014 Mathematical Programming with Applications to Economics Total Score: 45; Time: 3 hours

1 This diagram represents the energy change that occurs when a d electron in a transition metal ion is excited by visible light.

Advanced Algebra & Trigonometry Midterm Review Packet

MATH 1080: Calculus of One Variable II Spring 2018 Textbook: Single Variable Calculus: Early Transcendentals, 7e, by James Stewart.

Logic, Set Theory and Computability [M. Coppenbarger]

Lesson 2.1 Inductive Reasoning

CS311 Computational Structures Regular Languages and Regular Grammars. Lecture 6

( ) 1. 1) Let f( x ) = 10 5x. Find and simplify f( 2) and then state the domain of f(x).

Pythagoras Theorem PYTHAGORAS THEOREM.

Shape and measurement

Minnesota State University, Mankato 44 th Annual High School Mathematics Contest April 12, 2017

Mathematical Proofs Table of Contents

CHENG Chun Chor Litwin The Hong Kong Institute of Education

Letter STUDENT NUMBER SPECIALIST MATHEMATICS. Written examination 2. Number of questions and mark allocations may vary from the information indicated.

MA 15910, Lessons 2a and 2b Introduction to Functions Algebra: Sections 3.5 and 7.4 Calculus: Sections 1.2 and 2.1

Equivalent fractions have the same value but they have different denominators. This means they have been divided into a different number of parts.

Solids of Revolution

Intermediate Math Circles Wednesday 17 October 2012 Geometry II: Side Lengths

CIT 596 Theory of Computation 1. Graphs and Digraphs

m m m m m m m m P m P m ( ) m m P( ) ( ). The o-ordinte of the point P( ) dividing the line segment joining the two points ( ) nd ( ) eternll in the r

CS 360 Exam 2 Fall 2014 Name

Review Topic 14: Relationships between two numerical variables

12.4 Similarity in Right Triangles

STRAND J: TRANSFORMATIONS, VECTORS and MATRICES

Exam 1 Study Guide. Differentiation and Anti-differentiation Rules from Calculus I

Section 2.1 Special Right Triangles

Maintaining Mathematical Proficiency

Chapter 8 Roots and Radicals

List all of the possible rational roots of each equation. Then find all solutions (both real and imaginary) of the equation. 1.

Special Numbers, Factors and Multiples

Non Right Angled Triangles

Pythagoras theorem and surds

Student Book SERIES. Measurement. Name

Section 6.3 The Fundamental Theorem, Part I

50 AMC Lectures Problem Book 2 (36) Substitution Method

SAINT IGNATIUS COLLEGE

STRAND I: Geometry and Trigonometry. UNIT 32 Angles, Circles and Tangents: Student Text Contents. Section Compass Bearings

Transcription:

Yer 0 Mths. Semester One Revision Booklet. Nme

YEAR 0 MATHEMATICS REVISION BOOKLET AND STUDY SUGGESTIONS NAME: READ through ALL of this vie prior to strting your revision. It is essentil informtion. Chpters tht re exmine re: Chpter (Liner Reltions), Chpter (Inies n Surs), Chpter 6 (Mesurement) n Chpter 8 (Proility).. Summry Book - You nee to work on your summry ook if it is not up to te. Inlue ifferent types of exmples n formule tht you my nee to refer to. Do not OVER lutter your summry ook. Keep spe etween setions in se you wish to more in lter. You shoul inlue CAS instrutions n exmples. Summry Book rules re:. CAS It nnot hve fol out setions or ts. It is to e oun ook (leture p or exerise ook), it n e spirl oun if you wish. You re expete to know how to use your CAS to ssist you. You must still show ll working on the exm pper where mrks re llote for steps in Setion B (short nswer n extene response). Multiple Choie questions o not require working to e shown, hene CAS n n shoul e use to vntge in the yer 0 exm. You shoul o ny working for multiple hoie questions iretly on the exmintion pper to ssist you. The letter of your hoie will e irle on eh question.. Work through questions from text ook first. You shoul work through eh hpter tht is on the exm. Do the questions tht you i not hve to o in eh setion n the en of hpter questions. ALWAYS hek your nswers on regulr sis. 4. Work through your lss notes tht hve een provie Your lss notes help put ll the methos, priniples n exmples of eh require tehnique together in sequene for you. You shoul re k over these n opy or ut out n pste some of these exmples into your summry ook if esire. 5. Re through the summry provie t the en of eh hpter. The en of hpter summry is n exellent visul isply of how ll the key onepts, formule n methos relte together. It n e overwhelming t first, ut if you go through eh ox refully, it will e gret resoure to help put everything together for tht hpter. 6. Work through the revision questions provie. There re lrge numer of revision questions. You re expete to omplete ll of these thoroughly n in seprte exmintion revision leture ook. Keep your work net n show ll steps s you woul nee to for the exmintion. Chek your nswers regulrly. There re no further revision questions provie. This set is more thn enough, with the ove lso eing omplete s require prior to oing the provie revision questions.

YEAR 0 MATHEMATICS Semester, 07 Exmintion Thursy 8 th June 07 (8.5m to 0.5m) Reing Time: Writing Time: 0 minutes.5 hours QUESTION AND ANSWER BOOKLET Numer of questions Setion A: Setion B: Struture of exmintion Numer of questions to e nswere 0 5 Numer of mrks 0 65 Suggeste time 0 minutes 60 minutes STUDENT S NAME: TEACHER S NAME: INSTRUCTIONS: Stuents re permitte to ring into the exmintion room: A CAS lultor, one summry ook of their own notes, pens, penils, highlighters, ersers, shrpeners, rulers Stuents re NOT permitte to ring into the exmintion room: lnk sheets of pper n/or white out liqui/tpe All written responses must e in English, unless otherwise stte For Setion A: Multiple Choie responses re to e irle in this ooklet For Setion B: Stuents re to omplete ll nswers in the spe provie in this ooklet Mterils supplie: Question n nswer ook of 4 pges. Stuents re NOT permitte to ring moile phones n/or ny other unuthorise eletroni evies into the exmintion room.

Topi: Proility - Chpter 8 Revision Worksheets (Atthe) A B Solutions (Atthe) Text ook Chpter Summry Pge 6. NOT REQUIRED: Inepenent Events Text ook Chpter Review Pge 6-65 Multiple Choie: 9 Short Answer: (NOT 9) Extene Response: Text ook Semester Review Pge 749-75 Multiple Choie:,, 5 Short Answer:, (not (iv)), 4, 5, (i) Extene Response: prt,

Chpter 8 Proility Worksheet A A letter is hosen from the wor MATHEMATICAL. Fin the proility tht the letter is: T n A not n A n A or T An experiment involves tossing three ise oins n ounting the numer of tils. Here re the results fter running the experiment 00 times. Fin the experimentl proility of otining: Numer of tils 0 Frequeny 0 8 5 7 no tils tils fewer thn tils t lest tils A numer is hosen from the set of positive integers etween n 0 inlusive. A is the set of integers less thn 5 n B is the set of even numers etween n 0 inlusive. Represent the two events A n B in Venn igrm. List the following sets: i A B _ ii A B _

(ont.) If numer from the first 0 positive integers is rnomly selete, fin the proility tht the following events our. i A _ ii A B _ iii A B _ Are the events A n B mutully exlusive? Why/why not? 4 From lss of 0 stuents, 7 like soer, 4 like AFL n 9 like oth soer n AFL. Illustrte this informtion in Venn igrm. Stte the numer of stuents who like: i AFL only ii neither soer nor AFL Fin the proility tht person hosen t rnom will like: i AFL ii AFL only iii oth soer n AFL 5 This Venn igrm shows the istriution of elements in sets A n B. Trnsfer the informtion in the Venn igrm into two-wy tle. A A B B

5 (ont.) Fin: i n(a B) ii n(a B) iii n(a B ) iv n(a B ) v n(a) vi n(b ) vii n(a B) Fin: i Pr(A B) ii Pr(A ) iii Pr(A B ) 6 A r is selete from pk of 5 plying rs. Let A e the event the r is hert n B e the event the r is queen. Fin: i n(a) ii n(b) iii n(a B) Fin: i Pr(A) ii Pr(A ) iii Pr(A B) Use the ition rule to fin Pr(A B). Fin the proility tht the r is queen or not hert. 7 Two events A n B re suh tht Pr(A) = 0.45, Pr(B) = 0.7 n Pr(A B) = 0.8. Fin: Pr(A B) Pr(A B )

Chpter 8 Proility Worksheet B Consier the following Venn igrm isplying the numer of elements elonging to the events A n B. Fin the following proilities: Pr(A) Pr(A B) Pr(A B) Pr(B A) From the 0 memers of ski lu, 6 like skiing, like snoworing n 8 like oth skiing n snoworing. A ski lu memer is hosen t rnom. Let A e the event the person likes skiing n B e the event the person likes snoworing. Represent the informtion in two-wy tle. A A B B Fin the proility tht the person only likes snoworing. Fin the proility tht the person likes snoworing given tht they like skiing. Fin the proility tht the person likes skiing given tht they like snoworing.

Two four-sie ie, numere to 4, re rolle. List the smple spe using tle. Die 4 Die Fin the proility of otining the outome (, ). 4 Fin: i Pr (sum of t lest 6) ii Pr (sum not equl to 6) Fin the proility of sum of 7, given tht the sum is t lest 6. 4 Two letters re hosen from the wor NINE without replement Construt tle to list the smple spe. Letter N I N E N Letter I N E Fin the proility of: i otining the outome (N, E) ii seleting N n E iii seleting two Ns iv seleting two Ns given tht t lest one N is selete 5 Boxes A n B ontin 4 ounters eh. Box A ontins re n yellow ounters n ox B ontins re n yellow ounters. A ox is hosen t rnom n then single ounter is selete. Fin the proility of seleting re ounter from: i ox A ii ox B

5 (ont.) Represent the options ville s tree igrm tht shows ll possile outomes n relte proilities. Wht is the proility of seleting ox B n re ounter? Wht is the proility of seleting re ounter? 6 A g ontins re (R) n 4 white (W) mrles n two mrles re selete without replement. Drw tree igrm showing ll outomes n proilities. Fin the proility of seleting: i re mrle n then white mrle ii re mrles iii extly re mrle

6 (ont.) If the experiment ws repete with replement, fin the nswers to eh question in prt. i re mrle n then white mrle ii re mrles iii extly re mrle Chpter 8 Proility Worksheet A nswers 6 4 4 5 5 7 0 9 50 50 i {, 4} ii {,,, 4, 6, 8, 0} i 5 ii 5 The sets A n B re not mutully exlusive sine A B. iii 7 0 4 i 5 ii 8 i 7 5 ii 6 iii 0 5 A A B 5 6 B 4 7 9 9 8

i 5 ii 6 iii 4 iv v 9 vi 7 vii 5 i 5 8 ii 6 i ii 4 iii i 4 4 0 7 0.5 0. ii 4 Worksheet B nswers 5 4 5 iii iii 9 5 5 A A B 8 4 B 8 0 8 6 4 0 5 Die 4 (, ) (, ) (, ) (, 4) Die (, ) (, ) (, ) (, 4) (, ) (, ) (, ) (, 4) 4 (4, ) (4, ) (4, ) (4, 4) 6 i 8 ii 6

4 Letter N I N E N (N, I) (N, N) (N, E) Letter I (I, N) (I, N) (I, E) N (N, N) (N, I) (N, E) E (E, N) (E, I) (E, N) i 6 ii iii 6 iv 5 5 i ii 4 8 5 8 6 i 7 ii 7 iii 4 7 i 49 ii 9 49 iii 4 49

Topi: Mesurement - Chpter 6 Revision Worksheets (Atthe) A B C Solutions (Atthe) Text ook Chpter Summry Pge 455. NOT REQUIRED: Limits of Aury Text ook Chpter Review Pge 45 Multiple Choie: Short Answer: Extene Response:, - Text ook Semester Review Pge 746 747 Multiple Choie: - 5 Short Answer: - 4 Extene Response: prt,

Chpter 6 Mesurement Worksheet A Consier the given two-imensionl shpe. Fin the perimeter of the shpe if x = 8.8. Fin x if the perimeter is 9. m. Write n expression for x in terms of the perimeter P. If irle hs rius r m, fin the following, rouning to two eiml ples where neessry. The irumferene of irle if r = 4. A rule for r in terms of the irumferene C. The rius of irle with irumferene of 65 m. Fin the perimeter of these setors y i using ext vlues, n ii rouning to one eiml ple. i i ii ii

4 Fin the length of the unknown sie in these right-ngle tringles, orret to two eiml ples. 5 Consier the retngulr prism ABCDEFGH shown elow. Fin BE, leving your nswer in ext form. Fin BH, orret to two eiml ples. Chpter 6 Mesurement Worksheet B Fin the re of these shpes, rouning to two eiml ples where neessry.

e f g h Fin the vlue of the pronumerl for these shpes, rouning to two eiml ples where neessry. Are = 7 m Are = 0 m

Fin the totl surfe re of these solis, rouning to two eiml ples where neessry. 4 Fin the totl surfe re of this omposite soli, orret to one eiml ple.

Chpter 6 Mesurement Worksheet C Fin the volume of these solis, rouning to two eiml ples where neessry. e f

Fin the volume of this omposite soli, orret to one eiml ple. Fin the surfe re of sphere with rius 6 m, orret to two eiml ples. Fin the volume of sphere with imeter.74 km, orret to two eiml ples. Fin the rius of sphere with volume 580 mm, orret to two eiml ples. 4 This omposite soli inlues hemisphere n one s shown. Fin the surfe re, orret to two eiml ples. Fin the volume, orret to two eiml ples.

Chpter 6 Mesurement Worksheet A nswers 9 m x = 9. x = P 0. 5. m r C 0.5 m i 6 + π mm ii 9. mm i 6 + π m ii 5.7 m 4 4.87 m.44 km 5 65 8.60 Worksheet B nswers 49 m 68.64 m 0.4 km.0 mm e 9.8 m f 6.49 m g 7.5 mm h 7.6 m = 9 r =.09 mm 9. m 44 m 05.6 m 4 559.9 m Worksheet C nswers 48 m 58.90 m.5 m 84 mm e 6. mm f. m 48.69 m 45.9 m 0.77 km 5.7 mm 4 698.8 m 648.5 m

Topi: Liner Reltions - Chpter Revision Worksheets (Atthe) A B C Solutions (Atthe) Text ook Chpter Summry Pge 8. Not Require: Hlf Plnes Text ook Chpter Review Pge 8-87 Multiple Choie: 5 Short Answer: 6 Extene Response: Text ook Semester Review Pge 76 78 Multiple Choie: - 5 Short Answer: - 7 Extene Response: prt,

Chpter Liner reltions Worksheet A Simplify the following y olleting like terms. 5 6 4 xy x y xy x y Simplify the following. m 8n - pq 5 p q Expn the following using the istriutive lw. Simplify where possile. 4 x y x 5 x 4 Ftorise the following. x x 6 x 5 Evlute these expressions if -, 4 n -. 6 Simplify the following y nelling ommon ftors. -8 6mn mn 4 7x 7

7 Simplify the following. 0 5 8 9 8 Simplify the following. 5 6 4 x x 5 x 4 x 7 9 Solve the following equtions n hek your solution y sustitution. 5x 7 x 4x x 8 - x x 4 4 0 Solve the following inequlities n grph their solutions on the numer line provie. 4x -5 x 8 6 5x 9 7x 5

Chpter Liner reltions Worksheet B Deie if the point (-, 4) is on the line with the given equtions. y x 7 5x y -9 Fin the grient n y-interept for these liner reltions n sketh their grphs. y - x y x Sketh the grph of the following liner reltions y fining the x- n y-interepts. y x x y

4 Sketh the grph of the following liner reltions. x 5 y - y 4x y - x 5 Determine the grient of the line joining the following pirs of points. (6, ) n (9, 8) (-, 5) n (, -7) 6 Fin the eqution of the stright lines shown.

Chpter Liner reltions Worksheet C Fin the ext istne etween the pir of points (, ) n (, -5). Fin the mipoint of the line segment joining (, ) n (, -5). Fin the vlues of if the istne etween (, -) n (4, ) is. Deie if the grphs of eh pir of rules will e prllel, perpeniulr or neither. y -x 5 n y x 7 y x 9 n y x 6 4y x 8 n y x 4 Fin the eqution of the line tht is: prllel to y x 5 n psses through (-, ). perpeniulr to y - x 7 n psses through (4, 6). 5 4 Solve the following pirs of simultneous equtions using the metho of sustitution. y 8 6 x n y 4x x 5y -4 n y x 5

5 Solve the following pirs of simultneous equtions using the elimintion metho. 9x y n x y 9 x 7y n x 4y 8 6 The sum of the ges of two silings is n the ifferene etween their ges is 7. If Frnk is the oler rother of Beth, etermine their ges. 7 Json uys two highlighters n five pens n pys $6. Ey uys four highlighters n three pens n pys $8. Determine the ost of highlighter n the ost of pen.

Chpter Liner reltions Worksheet A nswers 7 6mn 4xy -5p q x y 4x 8y 4x 9 4 4 5-4 6 x x x -m x 4 5 8 x 7 6 4 5 7 6 8 5x x 4 x 7 9 9 x x x -4 x 5 0 x - x 4 x 7 Worksheet B nswers Yes, the point is on the line. No, the point is not on the line. -,,

4 5 5-4 6 y x y - x Worksheet C Answers 5, - or 7 Perpeniulr Neither Prllel y x 7 5 y x 4 4 (, -4) (, -) 5 (, ) (4, -) 6 Beth is 8, Frnk is 5. 7 Highlighters ost $, pens ost $.

Topi: Surs n Inies - Chpter Revision Worksheets (Atthe) A B Solutions (Atthe) Text ook Chpter Summry Pge 6 NOT REQUIRED: Rtionl Inies Exponentil Equtions Text ook Chpter Review Pge 4 Multiple Choie: 9, Short Answer: 5, 8-0 Extene Response:,, Text ook Semester Review Pge 80 8 Multiple Choie: - 5 Short Answer: 6, 0 Extene Response: prt,

Chpter Inies n surs Worksheet A Simplify the following. 54 8 6 5 Simplify the following. 7 9 6 6 6 8 5 0 5 4 7 75 Simplify the following. 6 7 5 5 0 8 6 4 Expn n simplify the following. ( ) 6 ( 4-6 ) 5 + 0

( 7 -)( 4+ 7 ) ( 4 5 - )( 5 + ) 5 Expn n simplify the following. ( 4+ ) ( 5 - ) ( 6- ) ( 6+ ) ( + 5 )( - 5 ) 6 Rtionlise the enomintor in the following. 5 5 4 6 0 Chpter Inies n surs Worksheet B Simplify the following using the inex lws. m 6 m s t 4s t 5 5

e x 5 y x y f x y Evlute using the zero power. 7m 0 6x 0 4x 0 Express eh using positive inies. x 8 y 4 5 4 Simplify the following n express your nswers using positive inies. 6 mn 4 m n m n 4 4 5 Write eh of these numers s si numerl. 7.905 0 4.8 0 5 6 Write eh of these numers using sientifi nottion. 5 60 000 0.0040

Define vriles n form exponentil rules for the following situtions. $400 000 is investe t 6% per nnum. The ontents of leking wter tnk, initilly 800 litres, is eresing t rte of 4% per hour. The vlue of house purhse for $600 000 is expete to grow y % per yer. Let $V e the vlue of the house fter t yers. Write rule onneting V n t. Use your rule to fin the expete vlue of the house fter the following numer of yers. Roun to the nerest ollr. i yers ii 0 yers Use tril n error to estimte when the house will e worth $ million. Roun to one eiml ple.

Chpter Inies n surs Worksheet A nswers 6 8 7 5 4 4 5 6 5 6 5 5 7 6 4 0 5 4 6 7 5 7 0 5 5 7 8 57 5 6 5 5 0 8 0 5 0 Worksheet B nswers m 4 8s 5 t 0 5 6 e 4x y 7 5 x 8y 4 m 9 4 n 7 5 79 050 0.000 08 f 8x 9 7y 5 6 5.6 0 6 4.0 0 A = mount of money t ny time, n = numer of yers of investment, A 400 000.6 n A = litres in tnk t ny time, n = numer of hours elpse, A 800 0.96 n V 600 000. t i $75 640 ii $ 86 509 4.5 yers