Edexcel IGCSE Maths 1 Answers to activities and exercises Unit 1 1NUMBER 11 EXERCISE 1 1 6 2 3 1 3 2 7 2 3 3 ‚ 75% 4 11 0.15‚ 15% 16 3 21 1 4 11 6 12 0.075‚ 7.5% 17 3 22 2 5 41 7 14 19 EXERCISE 1* 1 6 11 16 2 7 3 8 2 3 3 40 2 7 12 2 3 3 40 4 5 3 8 13 3 18 1 15 4 9 4 9 14 7 11 5 6 3 8 5 10 15 1 2 5 6 7 40 17 680 22 3.1 27 41.86 18 910 23 24 28 49.88 19 0.765 24 18 20 0.095 25 26.25 21 39 26 42.84 EXERCISE 2 1 6 11 16 5 –20 –6
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that the triangle below will be similar to “Pascal’s Triangle”. 1 1 1 1 1 1 1 1 1 1 There are many patterns evident in this triangle‚ for instance I can see that there is a vertical axis of symmetry down the middle of the triangle. Each row starts and ends with the number 1. Each row has one more variable than the number of rows‚ i.e. row 1 has 2 variables. The numerators in the middle stay the same and
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IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI M07/3/BUSMT/SP1/ENG/TZ0/XX 22075013 BUSINESS AND MANAGEMENT STANDARD LEVEL PAPER 1 Thursday 17 May 2007 (afternoon) 1 hour 30 minutes INSTRUcTIONS TO cANDIDATES Do not turn over this examination paper until instructed to do so. Read the case study carefully and then answer all the questions. 2207-5013 2 pages © IBO 2007 http://www.xtremepapers.net –2– 1. 2. (a) 4. Draw an organizational chart for
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• Type 1 Type 1 often affects people under 30 years of age but can develop at any time. In Type 1 diabetes‚ your pancreas stops making insulin or only makes a very small amount. Without insulin‚ glucose cannot enter into your cells which need to burn glucose for energy. Some people are born with the genes‚ but only some will develop it. While there is no such thing as a good or bad diabetic‚ some individuals have very wide‚ unsteady swings in blood sugars. This happens when their bodies have extreme
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letter except Z is assigned the numerical value that specifies its position in the alphabet. For example‚ the letter A is assigned the value of 1‚ B is 2 and so on. The letter Z‚ in order to use modular arithmetic later‚ will be assigned the value of 0. Therefore‚ if the plaintext is DEPAUW UNIVERSITY‚ then the corresponding series of numbers is 4‚ 5‚ 16‚ 1‚ 21‚ 23‚ 21‚ 14‚ 9‚ 22‚ 5‚ 18‚ 19‚ 9‚ 20 and 25 (the space is omitted). In order to create a plaintext matrix equivalent to the message‚ the
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Improper Integrals • • Applications to Engineering Systems Introduction to Ordinary Differential Equations (ODE) and Partial Differential Equations (PDE) PART THREE • • • Properties and Evaluation of Matrices Introduction to Symmetric and Skew-symmetric Matrices Simple simultaneous Linear Equations 1 PART I DIFFERENTIATION 1.0 1.1 Maxima and Minima‚ Tangents and Normals Gradients: The gradient of a straight line is the rate of change of y with x and is measured by = the increase in
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2.1.1 Distinguish between biotic and abiotic components of an ecosystem * Biotic factors in an ecosystem are living‚ biological factors that may influence an organism in an ecosystem * Abiotic factors are non-living‚ physical factors that may influence an organism in an ecosystem 2.1.2 Define the term trophic level * The position that an organism occupies in a food chain‚ or a group of organisms in a community that occupy the same position in food chains 2.1.3 Identify and explain
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* Topic 2: Cells * 2.1 Cell theory * 2.1.1 * Outline Cell Theory 1. All living organism are composed of cells 2. Cells come from pre-existing cells 3. Cells are the smallest unit of life * * 2.1.2 * Discuss the reasons for cell theory 1. When organism are looked at under a microscope‚ they are consistently made up of cells 2. Cells carry out asexual reproduction – called Mitosis 3. Cells are the smallest unit of organisms that can carry out all
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International Baccalaureate | Gold Medal Heights SL Math IA- Type II | Turner Fenton Secondary School | Completed by: Harsh Patel Student Number: 643984 IB number: Teacher: Mr. Persaud Course Code: MHF4U7-C Due Date: November 16th‚ 2012 Introduction This report will investigate the winning heights of high jump gold medalists in the Olympics. The Olympics composed of several events evaluating
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Math Summative: Fishing Rods Fishing Rods A fishing rod requires guides for the line so that it does not tangle and so that the line casts easily and efficiently. In this task‚ you will develop a mathematical model for the placement of line guides on a fishing rod. The Diagram shows a fishing rod with eight guides‚ plus a guide at the tip of the rod. Leo has a fishing rod with overall length 230 cm. The table shown below gives the distances for each of the line guides from the tip of
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