Do you think coal mining is worth the risk? Coal mining is worth the work because of what we get out of it. We get electricity out of it‚ we get jobs out of it (mining jobs) but everything good always has a bad side‚ we get health hazards like black lung disease. I think that coal mining is useful because of all the things above other than the bad one of course‚ otherwise everything is nice about it. You get jobs‚ it costs a small amount for a large amount of it‚ and you get electricity out of it
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CHAPTER 7: DATA MODELING USING THE ENTITY-RELATIONSHIP (ER) MODEL Answers to Selected Exercises 7.16 - Consider the following set of requirements for a UNIVERSITY database that is used to keep track of students’ transcripts. This is similar but not identical to the database shown in Figure 1.2: (a) The university keeps track of each student’s name‚ student number‚ social security number‚ current address and phone‚ permanent address and phone‚ birthdate‚ sex‚ class (freshman‚ sophomore‚
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Statistics is the study of the collection‚ organization‚ analysis‚ interpretation‚ and presentation of data. It deals with all aspects of this‚ including the planning of data collection in terms of the design of surveys and experiments. The word statistics‚ when referring to the scientific discipline‚ is singular‚ as in "Statistics is an art. "This should not be confused with the word statistic‚ referring to a quantity (such as mean or median) calculated from a set of data‚ whose plural is statistics ("this
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LIUTEBM UNIVERSITY DATABASE DESIGN CONCEPTS TCCS 121 – Student Notes 10 Introduction to Structured Query Language (SQL) What is SQL? SQL is Structured Query Language‚ which is a computer language for storing‚ manipulating and retrieving data stored in relational database. SQL is the standard language for Relation Database System. All relational database management systems like MySQL‚ MS Access‚ Oracle‚ Sybase‚ Informix‚ postgres and SQL Server use SQL as standard database language.
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CHAPTER 1 — BASIC RADAR PRINCIPLES AND GENERAL CHARACTERISTICS INTRODUCTION The word radar is an acronym derived from the phrase RAdio Detection And Ranging and applies to electronic equipment designed for detecting and tracking objects (targets) at considerable distances. The basic principle behind radar is simple - extremely short bursts of radio energy (traveling at the speed of light) are transmitted‚ reflected off a target and then returned as an echo. Radar makes use of a phenomenon
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ew Earth Mining is one of the largest producers of precious metals in the U.S. While the firm operates mines primarily in the U.S. and Canada‚ it has also made substantial investments in gold exploration projects in Australia and Chile. New Earth has been very successful and has a large amount of cash on the balance sheet‚ a simple debt structure‚ and a reasonable leverage ratio with no risk of liquidity. With a strong financial position‚ the firm considers reducing its dependence on precious metals
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for communication skills is important in virtually every career‚ not just those that are traditionally stared as people-oriented. The process of communication is more than the total of number of people involved‚ understanding them could help clarify what happens when one person stabs to express an idea to others. Communication can be defined as the process by which a message or information is exchanged from a sender to a receiver. Communication can be divided by internal (between people in the same
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SYNTHESIS OF THE RESEARCH ON ORGANIZATION DESIGN* HENRY MINTZBERGt The elements of organizational structuring-which show a curious tendency to appear in five ’s-suggest a typology of five basic configurations: Simple Structure‚ Machine Bureaucracy‚ Professional Bureaucracy‚ Divisionalized Form‚ and Adhocracy. The elements include (1) five basic parts of the organization-the operating core‚
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CHAPTER 2 WHOLE NUMBERS What have we discussed? 1. The number 1‚ 2‚ 3… which use for counting are known as natural number. 2. If you add 1 to a natural number‚ we get its successor‚ if you subtract 1 from a natural number‚ you get its predecessor. 3. Every natural number has a successor. Every natural number except 1 has a predecessor. 4. If add the number zero to the collection of the natural numbers‚ we get the collection of whole numbers. Thus‚ the number 0‚ 1‚ 2‚
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21 Basic Tools in Visual Basic 0.6 Control Description Pointer Provides a way to move and resize the controls form PictureBox Displays icons/bitmaps and metafiles. It displays text or acts as a visual container for other controls. TextBox Used to display message and enter text. Frame Serves as a visual and functional container for controls. CommandButton Used to carry out the specified action when the user chooses it. CheckBox Displays a True/False or Yes/No option. OptionButton
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