A Concise Intro To Logic
A Concise Intro To Logic
12th Edition
ISBN: 9781305147775
Author: Hurley
Publisher: Cengage
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A large building may require an automated alarm system which monitors and controls all fire and security alarms in the building. Normally, the building is divided into zones and a number of alarms are associated with each zone. Alarms alert a central manned control area who may pass these on to the emergency services or may respond personally.Factors which have to be taken into account in building such a system are:Ø If the control area is unmanned and an alarm is activated this alarm should not be ignored if it is potentially serious. Emergency services should be automatically called.Ø Some but not all parts of the building may be equipped with sprinkler systems or systems to shut down electrical equipment. These should be activated if a fire alarm is confirmed. They should not be activated if there are people in the same room.Ø The building may be equipped with direction indicators which illuminate the route to the nearest exit. These should be activated when a fire alarm is…
A robbery has just been committed at the Corner Market in the downtown area of the city (black rectangle in the city map). The market owner was able to activate the alarm, and the robber fled on foot. Police officers arrived a few minutes later and asked the owner, "How long ago did the robber leave?" "He left only a few minutes ago," the store owner responded. "He's probably ten blocks away by now", one of the officers said to the other. "Not likely," said the store owner. "He was so stoned on drugs that I bet even if he run ten blocks, he's still only within a few blocks of here! He's probably just running in circles!"Perform a simulation experiment that will test the store owner's hypothesis. Assume that at each corner of a city block there is an equal chance that the robber will go in any one of the four possible directions, north, south, east or west. Simulate for ten steps and five trials, and then indicate in how many of the trials the robber is within three blocks of the store.
Functions are used to map elements from one set to another. For example, barcode and QR scanner systems are developed by programmers to use specific symbologies to map the pattern in the barcode to actual digits. The check digit or the final digit is used to determine whether the function is true (known good) or false (errors in the mapping occurred). RFID system developers also use functions to develop a pairing protocol that securely connects legitimate devices within a specific proximity. RFIDs are using in logistics, retail, warehousing, and more.
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    In online learning, who is responsible for checking to make sure assignments are turned in?   a. The online teacher c. The lab instructor b. The student d. A lab partner           Please select the best answer from the choices provided A B C D In online learning, who is responsible for checking to make sure assignments are turned in?   a. The online teacher c. The lab instructor b. The student d. A lab partner           Please select the best answer from the choices provided A B C D
    The rules for a football player receiving a yellow flag for pass interference are as follows:   IF a defensive player Holds the receiving player back from moving forward to catch the pass OR pushes the receiving player away from the pass OR does not look back toward the incoming ball OR trips the player intentionally OR grabs the receiving players arm before the ball arrives THEN the player should receive a yellow flag and and the ball is placed at the spot of the pass interference   If the defensive player follows very closely to receiving player without impeding his forward progress, does look back up the field to track the incoming pass, but the receiving player does not catch the ball, then the defensive player:    Should receive a yellow flag but the ball is returned to the original spot   Should not receive a yellow flag but does get a 5 yard penalty   Should receive a yellow flag   Nothing should happen
  • A seagull flies at 27 meters above sea level. A dolphin swims at –27 meters and a flounder fish swims at –43 meters. The seagull's distance from sea level is _________ the dolphin’s distance from sea level.
    What are the controllable inputs from this example? What are the uncontrollable inputs from this example? Shelby Shelving is a small company that manufactures two types of shelves for grocery stores. Model S is the standard model and model LX is a heavy-duty version. Shelves are manufactured in three major steps: stamping, forming, and assembly. In the stamping stage, a large machine is used to stamp standard sheets of metal into appropriate sizes. In the forming stage, another machine bends the metal into shape. Assembly involves joining the parts with a combination of soldering and riveting. Since different amount of solder and rivets are used for assembly, they have different workstations.   Model S shelves are sold for $350 and model LX shelves are sold for $405. Shelby’s operation is fairly small in the industry, and management believes it cannot raise prices beyond these levels because of the competition. However, the marketing department believes that Shelby can sell as much as…
    Sembotix Company has several divisions including a Semiconductor Division that sells semiconductors to both internal and external customers. The company’s X-ray Division uses semiconductors as a component in its final product and is evaluating whether to purchase them from the Semiconductor Division or from an external supplier. The market price for semiconductors is $100 per 100 semiconductors. Dave Bryant is the controller of the X-ray Division, and Howard Hillman is the controller of the Semiconductor Division. The following conversation took place between Dave and Howard: Dave: I hear you are having problems selling semiconductors out of your division. Maybe I can help. Howard: You’ve got that right. We’re producing and selling at about 90% of our capacity to outsiders. Last year, we were selling 100% of capacity. Would it be possible for your division to pick up some of our excess capacity? After all, we are part of the same company. Dave: What kind of price could you give me?…
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    The Commission of Education reported that 47% of college freshmen earn a degree and graduate within 5 years. Assume that the graduation records show that women make up 50% of the students who graduated within 5 years, but only 45% of the students who did not graduate within 5 years. The students who had not graduated within 5 years either dropped out or were still working on their degrees. a. Let A1 = the student graduated within 5 yearsA2 = the student did not graduate within 5 yearsW = the student is a female student Using the given information, what are the values for P(A1), P(A2), P(W ǀ A1)and P(W ǀ A2)? P(A1) = ____________ P(W ǀ A1) = _______P(A2) = ____________ P(W ǀ A2) = _______ b. What is the probability that a female student will graduate within 5 years?Identify the values of the following:P(A1)P(W/A1)P(A1 ∩ W)P(A1/W)P(A2) P(W/A2) P(A2 ∩ W)P(A2/W) P(W) = _______ c. What is the probability that a male student will graduate within 5 years? d. Given the preceding results, what…
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  • Shelby Shelving is a small company that manufactures two types of shelves for grocery stores. Model S is the standard model; model LX is a heavy-duty version. Shelves are manufactured in three major steps: stamping, forming, and assembly. In the stamping stage, a large machine is used to stamp (i.e., cut) standard sheets of metal into appropriate sizes. In the forming stage, another machine bends the metal into shape. Assembly involves joining the parts with a combination of soldering and riveting. Shelby’s stamping and forming machines work on both models of shelves. Separate assembly departments are used for the final stage of production. The file C03_01.xlsx contains relevant data for Shelby. (See Figure 3.38.) The hours required on each machine for each unit of product are shown in the range B5:C6 of the Accounting Data sheet. For example, the production of one model S shelf requires 0.25 hour on the forming machine. Both the stamping and forming machines can operate for 800 hours…
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    The controlling function involves which of the following? Guiding employees Setting goal Preparing work schedule Making corrective action
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