Consider the following valid argument: If Mark likes Algebra, then he is a mathematician. Mark does not like Geometry. Mark is a mathematician or Mark is smart. If Mark is a mathematician, then he likes Geometry. Therefore, Mark is smart, or if Mark likes Algebra, then Mark likes Geometry.

A. Symbolize the given argument using A for "Mark likes Algebra", M for "Mark is a mathematician", G for Mark likes Geometry, S for "Mark is smart". 

B. Write a formal proof of validity for the given argument. (No truth tables allowed) 

Let C be the binary cyclic code of length 15 generated by g(x) = x5 + x4 + x2 + 1. (a) Show that g(x) is a valid generator polynomial. (b) Compute the parity check polynomial for C. (c) Determine the dimension of C and the number of codewords in C. (d) Construct generator and parity check matrices for the code.

1. Explain the concept of mark-to-market accounting as used by Skilling and Lay and why this accounting method is particularly susceptible to ethical indiscretions. 2. In what ways did the Securities and Exchange Commission fail to monitor Enron's use of this accounting method? 3. In what ways were the financial analysts, investment bankers, U.S. financial institutions, the SEC, and Enron's accounting firm Arthur Anderson complicit in helping Enron cover up massive financial and accounting fraud? 4. How did Enron's corporate culture of "survival of the fittest" contribute to the unethical business practices by employees and executives alike? Provide examples. 5. In what ways did Skilling's involvement in unethical financial and accounting practices benefit stakeholders initially? 6. What were the ultimate consequences to stakeholders and employees after bankruptcy? 7. The priest at the end of the film mentions "the pursuit of money can cause one to lose one's soul." How do you interpret this quote in the context of both the Enron scandal AND your own beliefs around money and the pursuit of it. 8. What happened to Skilling and Lay...and where are they now?

Part 1 - The Website: (HTML, CSS, and JS files) Overview: The website you will create has to be fully responsive by applying the Responsive Web Design (RWD) approach. In your website, create at least four HTML pages. These pages should be organized with internal navigation links between the pages and of which one page is the form registration to allow new members to register. Also your website should include one external style sheet file that can be applied to all the web pages. The Website should include the following elements: Four webpages linked together with proper and an easy navigation. Each page should have meaningful title (using the same title for all the pages is not considered meaningful). An external CSS file to define the style of your website. Web Tables. One of the web pages should include a club member registration form with validation. Graphics and animations: Pictures, logo, video, audio, animations… A script: JavaScript function (optional). A footer using the a copyright notice: © [year] [name] You should organize all the pages in a good structure. If you're using an image or some text from somewhere else, you must clarify the origin of that resource in a comment in your HTML or CSS file. The website should work at all device sizes: desktop, tablets and phones (RWD). Use of valid HTML tags to provide a fluid layout of the webpage Working Navigation that changes based on the device type Use of responsive image techniques (SVG, CSS Media Queries, viewport, etc.) You're allowed to use some CSS techniques or scripts developed by others, only in the circumstances that you adopted and modified it to fit your website. Copying is not allowed, and you will automatically get zero if such action is detected. Each HTML page and CSS should pass the W3C validation. Be Creative…!

In doubly circular linked list using c++ implement the following methods,In the class DCLinkedList, define the class DNode as a private class with public data members data and next and previous. This class has just one with-arg constructor that takes the data as parameter. No other member functions in this class. the doubly circular linked list has Two private data members: 1. myFirst: a pointer to the first node if the list is not empty, otherwise to null. 2. mySize: an integer representing the number of nodes in the list. Methods to be implemented are the following deleteBeforeData to delete the node before the one that contains a certain data from the list. deleteAfterData to delete the node after the one that contains a certain data from the list. cutAtpos to cut and return the node at a certain valid position.

I understand what a vector can represent, but I still don't understand what a vector space represents. I understand that you can add two vectors and that becomes a vector space. What else can you do with them? What can you apply it to? I am taking a linear algebra course right now and understand the calculation steps, but not really what these tools are for. I hope that adds some context to my strange and probably vague question. Thanks!

Java program help please! The volleyball coach at Verde Valley High School would like some help managing her team. She would like a program to help her identify the best players. She has team rosters stored in text files that contain the names of her players (first name, then last name separated by a space), and their stats as attacks per set (a double) followed by blocks per set (a double). Higher stat scores are better. Each data field is separated by a space. For example, one line in a roster file would look like: Gabrielle Reece 4.57 1.79 The coach would like the program to do the following: Present a menu with the following options: 1. Open a roster file 2. List all players 3. List top attackers 4. List top blockers 5. Add a player 6. Change a player's stats 7. Count players 8. Quit program When the user chooses 1 to open a roster file, then the program will ask for the filename of a roster file, then open and read the data from that file into an ArrayList. When the user chooses 2 to list all players, then the program will list the names and stats of all player players. When the user chooses 3 to list top attackers, then the program will determine and list the names and stats of the players with the top 2 attack stats. When the user chooses 4 to list top blockers, then the program will determine and list the names and stats of the players with the top 2 stats for blocks. When the user chooses 5 to add a player, then the program will prompt the user to enter the new player's name (first and last), attack stat (double), and block stat (double). The program should collect this information from the user, and then instantiate a new Player object with the given name and stats, and add that Player to the roster. When the user chooses 6 to change a player's stats, then the program will prompt the user to enter the player's name (first and last). If there is a player on the roster with the given name, then the program will collect the new attack stat score (double), and block stat score (double), and will update the stat values for this player. When the user chooses 7 to count players, then the program will display the number of players on the current roster. When the user chooses 8 the program will end. The Main class has already been designed and written for this program. Carefully review the code in the Main.java file and be sure that you understand how it works. Your task is to implement the Player and Roster classes. The Player class will allow us to instantiate Player objects that will store the important information (name, attack stat, block stat) for a player. The Roster class will allow us to create and manage a roster of players - we will use an ArrayList<Player> to store the Player objects. Part 1 - Implement the Player Class In a file named Player.java, implement the class described below. The Player class must have the following private instance variables: a variable named name that will store a String a variable named attackScore that will store a double a variable named blockScore that will store a double The Player class must have the following public constructor method: an overloaded constructor that takes three arguments. The first argument will be a String (player's name). The second (attack score) and third (block score) arguments will be type double. The Player class must have the following public methods: a method named getName. This accessor method will take no arguments. This method will return a String. a method named getAttackScore. This accessor method will take no arguments. This method will return a double. a method named setAttackScore. This mutator method will take one double argument. This method will not return anything. a method named getBlockScore. This accessor method will take no arguments. This method will return a double. a method named setBlockScore. This mutator method will take one double argument. This method will not return anything. a method named printInfo. This method will take no arguments. This method will not return anything. Other Details The overloaded constructor should initialize the object's name, attackScore and blockScore variables with the values passed in to the parameter variables. The getName accessor method should simply return the value stored in the object's name variable. The getAttackScore accessor method should simply return the value currently stored in the object's attackScore variable. The setAttackScore mutator method should store the value passed in as an argument in the object's attackScore variable. The getBlockScore accessor method should simply return the value currently stored in the object's blockScore variable. The setBlockScore mutator method should store the value passed in as an argument in the object's blockScore variable. The printInfo method should print out to the console, the name and stats for this player object. The printout should look like this: Rachael Adams (attack = 3.36, block = 1.93) Part 2 - Implement the Roster Class In a file named Roster.java, implement the class described below. The Roster class must have the following private instance variables: a variable named playerList that will store a reference to an ArrayList<Player> The Roster class must have the following public constructor methods: a default constructor an overloaded constructor that takes one argument. This argument will be a String. The Roster class must have the following public methods: a method named addPlayer. This method will take three arguments. The first argument will be a String (player's name). The second (attack score) and third (block sscore) arguments will be double. a method named getPlayerCount. This method will take no arguments. This method will return an int. a method named getPlayerByName. This method will take one String argument. This method will return a Player reference. a method named printTopAttackers. This method will take no arguments. This method will not return anything. a method named printTopBlockers. This method will take no arguments. This method will not return anything. a method named printAllPlayers. This method will take no arguments. This method will not return anything. Other Details The default constructor should instantiate a new ArrayList object, and store a reference to this object in the Roster's playerList instance variable. The overloaded constructor should instantiate a new ArrayList object, and store a reference to this object in the Roster's playerList instance variable. It should then open the roster file named in the parameter variable. It should then read in the data from this roster file and, for each line in the file, it should create (instantiate) a new Player object with the player name and block and attack scores on that line, and add this Player to the ArrayList playerList. The addPlayer method should instantiate a new Player object with the name and block and attack scores provided in the argument values, and then add this Player to the roster's ArrayList<Player> object. The getPlayerCount method should return the number of players currently stored in the roster's ArrayList<Player> object. The getPlayerByName method should iterate through the roster's ArrayList<Player> object and search for a player with a name that is equal to the argument value. If such a Player is found, then this method should return a reference to that Player object, otherwise this method should return null. The printTopBlockers method should determine the two Player objects with the best block scores (in descending order). It should then call the printInfo method on these Player objects. The printTopAttackers method should determine the two Player objects with the best attack stats (in descending order). It should then call the printInfo method on these Player objects. The printAllPlayers method should iterate through the roster's ArrayList<Player> object and call the printInfo method on each of these Player objects.