Exercises 9 address driver-id person name owns license model year car report-number location date driver participated accident damage-amount Figure 2.1 E-R diagram for a Car-insurance company. Exercises 2.1 Explain the distinctions among the terms primary key‚ candidate key‚ and superkey. Answer: A superkey is a set of one or more attributes that‚ taken collectively‚ allows us to identify uniquely an entity in the entity set. A superkey may contain extraneous attributes
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Learning Theories In this exercise‚ you will define and discuss the concepts of Learning and Theory. Please save this document and type directly on this worksheet. Every response should be substantive and requires a minimum of 3 to 5 complete sentences per response. When completed‚ please submit this document as an attachment to the appropriate drop box. Refer to “Exercise 2.3: VARK Learning Styles Assessment‚” on pages 54-56 of your textbook. Complete the exercise to discover your
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The Use of Cooling Curves in the Determination of the Phase Diagram for a Lead-Tin System V.O.L.Tabell Department of Mining‚ Metallurgical and Materials Engineering University of the Philippines‚ Diliman vo_tabell@yahoo.com Abstract This paper discusses the use of the cooling curves in the determination of the phase diagram of a Lead-Tin system. The inflection points of these cooling curves were obtained by melting a series of mixtures of lead and tin at varying compositions. These critical
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Assignment: Draw and explain a Use-Case diagram for a Library Management System. Introduction: Capturing the dynamic behaviour of a system is one the key aspects to create a model. Dynamic behaviour means the behaviour of the system under operation. Use case diagrams are used in Unified Modeling Language‚ a standard modelling language for the modeling of real-world objects and systems. A use case diagram is to explicitly define the working of a system with in a system boundary. Each system is primarily
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Venn diagram –Max-min 1. According to a survey‚ at least 70% of people like apples‚ at least 75% like bananas and at least 80% like cherries. What is the minimum percentage of people who like all three? Answer: Let’s first calculate the surplus: percentage of people who like apples + percentage of people who like bananas + percentage of people who like cherries = 70% + 75% + 80% = 225% = a surplus of 125%. Now this surplus can be accommodated by adding elements to either intersection of only
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2013 Week 4 Problems and Exercises Chapter 7 5) Consider the E-R diagram in Figure 7-20. Based on this E-R diagram‚ answer the following questions: a. How many EMPLOYEES can work on a project? There is no set limit of employees to work on one given project. b. What is the degree of the Used on relationship? There are 2 degrees for the Used on relationship. c. Do any associative entities appear in this diagram? If so‚ name them. Yes there is task which is an associative entity. d
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Midwifery Diagram and Summary Anny .F.Mogoung HCS/531 DR.David Harrell April 17‚ 2013 University of Phoenix Within the Healthcare continuum‚ there are different types of careers. We can have providers‚ researchers‚ administrators‚ and other. Among the providers nursing is a field that can be listed. Midwifery is a part of nursing. In the following lines‚ we will describe the midwifery career; identify the workforce roles within two services and finally explore the impact
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1. Cuneiform- Cuneiform is Sumerian Writing that is a style of pictogram. It was written using a reed stylus and made wedge shaped impressions on clay tablets. They were then baked or dried in the sun to make them hard and virtually indestructible. Cuneiform evolved over time into something more advanced as civilizations kept rising and falling in Mesopotamia. Some examples of things Cuneiform was used for are tallies of cattle or other live stock by herders‚ lists of taxes and wages payments‚ contracts
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Consider the following imperfectly competitive model. The above data represents a MRP applied to an imperfect product market. As more products are sold‚ the price decreases. Given a MCF of $20 _____________ workers would be hired. 4 The above data represents a MRP applied to an imperfect product market. As more products are sold‚ the price decreases. Given a MCF of $15‚ _____________ workers would be hired. 4 The above data represents a MRP applied to an imperfect product market. As
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LEARNWELL OY Supporting you in the world of languages! B USINESS ENGLISH 2008 C HARTS ‚ GRAPHS AND DIAGRAMS Learnwell Oy professional language training and translation services include: • language training‚ special intensive courses and custom-designed courses • translation‚ interpreting‚ proofreading and editing services • dedicated services (our X-file products) that include monthly support for ongoing small translation‚ editing and proofreading tasks; corporate team-building training
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