Previous exam questions on area between functions and volumes of solids. 1. Let f(x) = cos(x2) and g(x) = ex‚ for –1.5 ≤ x ≤ 0.5. Find the area of the region enclosed by the graphs of f and g. (Total 6 marks) 2. Let f(x) = Aekx + 3. Part of the graph of f is shown below. The y-intercept is at (0‚ 13). (a) Show that A =10. (2) (b) Given that f(15) = 3.49 (correct to 3 significant figures)‚ find the value of k. (3) (c) (i) Using your value of k‚ find f′(x). (ii) Hence
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The Respiratory System is crucial to every human being. Without it‚ we would cease to live outside of the womb. Let us begin by taking a look at the structure of the respiratory system and how vital it is to life. During inhalation or exhalation air is pulled towards or away from the lungs‚ by several cavities‚ tubes‚ and openings. The organs of the respiratory system make sure that oxygen enters our bodies and carbon dioxide leaves our bodies. The respiratory tract is the path of air from the
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Exercise 7.1.1 Why is it impractical for an organization to own the entirety of a WAN? There are no limitations on WANs so they can be custom built for the size of the organization. Why is it favorable for an organization to maintain ownership of the entirety of the LAN? For the purpose of organizational expansion. Exercise 7.1.2 What effect will increasing the required transmission distance have on transmitting the signal clearly? The longer the distance the more chances that you
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In Lab 8‚ we had analyzed remains found at a wooded area near Jonesburg and tried to determine if the bones belonged to a 28-year-old woman who had been reported missing from a city within the vicinity. Upon analysis‚ it was determined that they did belong to a female. However‚ it was not possible to determine if the bones did belong to the missing women. Lab 12 presented the opportunity to genetically analyze the remains found. DNA profiling‚ also referred to as typing and fingerprinting‚ uses genetic
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Respiratory system: The respiratory system is a combination of the Circulatory and Pulmonary systems feeding oxygen and nutrients to cells all around the body. These systems allow oxygen to enter the body‚ and be circulated around the body at a varying rate. These two systems work in conjunction with each other and have various rates of operation that are usually in as close a correlation as possible. Circulatory System: The circulatory system’s primary responsibility is to circulate oxygenated
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draft: Topic: Contrasting differences‚ resemblance and evaluation of two computer operating systems‚ Windows 7 and Windows 8. The release of Windows 8 has divided the online community in two contradictory groups. Some users appear to enjoy the new features and performance of the newest Windows operating system‚ while others recommend choosing its well-received predecessor Windows 7 (Mikoluk‚ 2013). The purpose of this essay is to examine some of the primary characteristics of these operating
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Data communication and networking 7040 Week 4 assignment: Lab exercise Introduction: All network administrators must focus the rules and their system and network administrations and clients will discover satisfactory. These operational conditions can be viewed as ordinary for that system. Studies have demonstrated that system supervisors are wagering on expanded transmission capacity as the answer for system issues. A decently characterized and appropriately executed system testing
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1. Triple DES Triple DES was designed to replace the original Data Encryption Standard (DES) algorithm‚ which hackers eventually learned to defeat with relative ease. At one time‚ Triple DES was the recommended standard and the most widely used symmetric algorithm in the industry. Triple DES uses three individual keys with 56 bits each. The total key length adds up to 168 bits‚ but experts would argue that 112-bits in key strength is more like it. Despite slowly being phased out‚ Triple DES still
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categories: acute and chronic.[1][2][3][4] Acute bronchitis is characterized by the development of a cough or small sensation in the back of the throat‚ with or without the production of sputum(mucus that is expectorated‚ or "coughed up"‚ from the respiratory tract). Acute bronchitis often occurs during the course of an acute viral illness such as the common cold or influenza. Viruses cause about 90% of acute bronchitis cases‚ whereas bacteria account for about 10%.[5][6] Chronic bronchitis‚ a type
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Linux Fedora 15 Chapter 7 1. The shell waits for the command to finish executing. You can send the command to the background by using "&". 2. cat list | sort | lpr 3. A PID number is an identification number assigned to a command running in the background‚ which can be used to differentiate between commands. The PS (process status) utility. 4. $ ls section* $ ls section[1-3] $ ls i* $ ls*[13] 5. fgrep -i ’a’ | wc -l fgrep ’a’ find lines containing "a"; the -i option tells it to ignore
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