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Answer ALL the questions. Write your answers in the spaces provided. 2 A helicopter flies between 3 locations, A, B and C, which are positioned such that AB = 9 km, AC = 5 km and angle °. ABC = 24 Find the possible values of angle ACB to 1 decimal place. (3) 1 a) Given that f(x) = x 3 – 4x 2 – 3x + 7, find f '(x). (2) b) Hence find the values of x for which f(x) is a decreasing function, giving your answer in the form {x : x > «a{} x : x < b} where a and b are real numb...

Paper 2: Statistics and Mechanics AS Wednesday 22 May 2019 SECTION A: STATISTICS 1. A sixth form college has 84 students in Year 12 and 56 students in Year 13 The head teacher selects a stratified sample of 40 students, stratified by year group. (a) Describe how this sample could be taken. (3) The head teacher is investigating the relationship between the amount of sleep, s hours, that each student had the night before they took an aptitude test and their performance in the test, p marks...

Section A : Multiple Choice & Short Answer Questions There s not much to say on ’ Section A except that it s an , ’ opportunity to pick up some easy marks. Best way to ensure you answer the questions correctly is to follow the D s Rule “3 ’ ”: 1. DEFINITIONS: Have a clear understanding of the definitions See page for . 12 a worked example . 1 2. DATA: Determing what the data ( ’ ) you re presented with is telling you about the question as a whole? 3. DETAILS: Foc...

AS LEVEL BIOLOGY NOTES 2015 INTRODUCTION Hello, this is the summary of AS level Biology (CIE) for 2015 Exam. As references, I am using the books: Cambridge International A/AS-level Biology Revision Guide by Mary Jones Cambridge International A/AS-level Biolog

EDEXCEL: AS BIOLOGY REVISION NOTES: UNIT 1 Metabolism Metabolism is a term to describe all reaction which is taking place within a cell and is separated into two types which are • anabolic = compounds being built up • catabolic = compounds being broken down Water The water molecule is a molecule which is made up from 2 hydrogen atoms and 1 oxygen atoms. It is bounded by 2 covalent bonds and has is polar. The reason why water molecules are important for living organisms are because ...

AQA A-level MATHEMATICS 7357/2 Paper 2 Mark scheme June 2020 Version: 1.0 Final Mark Scheme

AQA A-level MATHEMATICS 7357/2 Paper 2 Mark scheme June 2020 Version: 1.0 Final Mark Scheme AQA A-level MATHEMATICS 7357/2 Paper 2 Mark scheme June 2020 Version: 1.0 Final Mark Scheme

ENGLISH HOME LANGUAGE P2 (LITERATURE) FINAL EXAMINATION NOVEMBER 2020 GRADE 10 INSTRUCTIONS AND INFORMATION 1. Read this page carefully before you begin to answer the questions. 2. Do NOT attempt to read the entire question paper. Consult the table of contents and mark the numbers of the questions set on texts you have studied this year. Thereafter, read these questions and choose the ones you wish to answer. 3. This question paper consists of THREE sections: SECTION A: Poetry (30 m...

OCR GCE Chemistry A H432/02: Synthesis and analytical techniques Advanced GCE Mark Scheme for November 2020

OCR GCE Chemistry A H432/03: Unified chemistry Advanced GCE Mark Scheme for November 2020