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Databases Questions and Answers January 05, 2021

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40. Rewrite the binary tree postorder traversal algorithm using a stack instead of recursion
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Amy, Jim, John, and Kelly are standing on the east bank of a river and wish to cross to the west side using a canoe. The canoe can hold at most two people at a time. Amy, being the most athletic, can row across the river in 1 minute. Jim, John, and Kelly would take 2, 5, and 10 minutes, respectively. If two people are in the canoe, the slower
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Using an annotated diagram, detail how security components can be integrated into life cycle processes during the development of software, providing a brief statement for each of the security components.

Algorithm analysis Show that the worst - case and average - case time complexities for the mumber of sssignments of rocords performed by the Insertion Sart algarithm ( Algorithm 7 . 1 ) are given by A ( n ) = n ( n + 7 ) 4 - 1 ~~ n 2 4 .
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Lab 2 Automatic Beverage Vending Machine The token price of a beverage is 5 cents, and our specially designed beverage vending machine only accepts tokens of 1 cent, 2 cents and 5 cents. The task of the laboratory is to design a finite state machine for the automatic beverage vending machine. The following table shows the interface signals
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Please convert each of the data sets given below into their UNF, 1NF, 2NF, 3NF. HEALTH HISTORY REPORT PET NAMERELAGE OWNER VISIT DATE JAN 13/2002 MAR 27/2002 APR 02/2002 PROCEDURE 01 - RABIES VACCINATION 10- EXAMINE and TREAT WOUND 05 HEART WORM TEST 246 ROVER DOG SAM COOK 298 DOG 2 TERRY KIM 08 TETANUS VACCINATION 05 HEART WORM TEST SPOT JAN
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Please help me in this problem. Essentially, the problem asks me to calculate the sum of all integers for an inputted integer. My work is fine on that aspect, however, the maximum I can calculate is for a 3-digit integer. Please help me rewrite my code to compute the sum of an integer of any length. PLEASE KINDLY FOLLOW MY CODE STRICTLY WITHOUT

What is a hybrid algorithm that uses asymmetric keys to encrypt the symmetric key, which is then used to encrypt the rest of a message? A . Blowfish B . Skipjack C . El Gamal D . Advanced Encryption Standard ( AES )

When networking you need to have class which means

Problem 3 . Airplanes take off only when weather conditions are appropriate, visibility is within boundaries, and wind speed is under limit . Write a program to print the season based on a given month using " if elseif else end" and specify if the airplane can take off based on the visibility ONLY. The latest forecast showed that there is a
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True or false the internet of things is a new internet that humans users cannot use

Computer Programming Language: Python Question 3 Ask the user for the number of rows to create a right triangle with this pattern: Sample Run: Please input row to create a right triangle: 5 5 45 345 2345 12345 Sample Run: Please input row to create a right triangle: 3 3 23 123
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Usability comprises which of the following areas?

In C++ Having heard you have gotten really good at programming, your friend has come to ask for your help with a simple task. She would like you to implement a program to encrypt the messages she exchanges with her friends. The idea is very simple. Every letter of the alphabet will be substituted with some other letter according to a given key

EIS 610 Project Deliverable #1 You may work as an individual or in a group. You should have at least 5 user stories per group member. Inception Phase (Project Kickoff) The following artifacts from the inception phase must be complete and submitted as a Word or text document: * Project Vision This should be the vision from your story submission, so

7 What is the purpose of creating a 'chunky work plan'? To handle large volumes of data To ensure all hypotheses are tested thoroughly To break down work into manageable parcels over short periods of time To assign specific tasks to each team member Which of the following is a key element in the Drice / Volume cleaving frame?
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d) A data pattern analyser is to be built that can detect and count up the number of occurrences of strictly increasing and strictly decreasing sequences of three numbers in an input sequence. So for the sequence (1,2,3,4) there are two strictly increasing sequences (1,2,3) and (2,3,4). The analyser should stop if it encounters 0 in the input
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Choice C is incorrect, Not sure which answer of either A,B, or D is correct. What is the IP address of the Mininet VM NAT adapter (etho)? Select one: a. none b. 10.0.0.1 . O C. 192.168.56.1 d. 10.0.2.15
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4) Which of the following is not true about a Fill color? It should contrast with the font color. It cannot be applied to an entire row or column. It can help the data stand out. It is color that displays behind the data in the cell.

For signed multiplication of two [signed] integers, how many bits are needed to store the product without overflow A)64 B)63 C)can't be determined D)33 E)32

(Simple irregular Transposition Cipher) You have intercepted the following ciphertext, and you suspect an irregular transposition cipher (so the number of letters need not be a multiple of the keylength). EUONI TSTEE TAMTE IRSSN HQFIV EORSW IGIYP IRGNH ARTIH OG The text was encrypted by your friend Charles Babbage, and you suspect he was lazy and

FOR SQL The condition 'Christine'
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please i want full clear solution DONOT COPY 2. (10 points) Web and System Security (a) (2 points) What are the ethical responsibilities of computer engineers when working with private customer data? (b) (2 points) Explain how an XSS attack works and how it can be prevented. (c) (2 points) Explain how SQL injection works and how it can be
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Comprehensive final project Incident report on T - Mobile data breach

java show how many ways to code the number 1 2 1 alphabetical. outputs should look like: abc cba bca etc.

Python functions Problem 1 Create a Python function called sumofodds which takes one argument, an integer greater than or equal to 1, and returns the result of adding the odd integers between 1 and the value of the given argument (inclusive). This function does not print. Do not use Python's sum() function. Do not build a list. You may assume that
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Review Questions 1. What is the difference between RFC 5321 and RFC 5322? 2. Why is base64 conversion useful for an e-mail application? 3. What is the utility of a detached signature? 4. What is DKIM? Problems 1. The character sequence . indicates the end of mail data to a SMTP-server. What happens if the mail data itself contains that character

I want the solve with header files and cpp files , not only 1 cpp files Define a struct called Medicine that has the two components pime, and cost, Define a class called Pharmacy that has protected members name, number O/Medicmes. totalCost, and A[] an array of type Medicine. The class also has the public members
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Write a python program to sum the even numbers between 1 and 99
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How many times does each line run? How many times does each line runs. //Assume n is divisible by 3. double sum = 0: for(int i = 0: i 0: j--) { doSomething (): } }
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I need help on steps to graph this on Matlab Show that 5n log n + 4n + 10 logn is O(n log n). Provide a graph that demonstrates this. (Use any tool you choose to graph: excel, matlab, python, etc...)
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Cryptography & Network Security 1. (15 points) Public Key Infrastructure (PKI). (a) (3 points) Explain the purpose of certificates, certificate authorities (CAs), and private- public key pairs in a PKI. (b) (3 points) What are the differences between the X.509 PKIX and the PGP trust models? In which case is one better than the other? (c) (3
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Select the relations that are not in 2NF. Underlined attributes denote Primary Key. Relation: Soccer Club (City, Owner, NumberOfSupporters, Motto, Trophy Count) FDs: City, Owner Trophy Count, Motto, NumberOfSupportes All of them are in 2NF. Relation: Soccer Club (City, Owner, NumberOfSupporters, Motto, Trophy Count) FDs: City, Owner - Motto City -
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True or False: You cannot set up a custom validation test, you can only use the ones available.

1. a).Explain the difference between a method definition and a method invocation. b).What is the difference between defining a method as public and defining it as private? (Explain in Detail) c).For which method is the public modifier always required
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Custom Foot operates six retail locauons. AI first glance, none looks diferent from a typical boot store. But here the only bools on hand are display models. There is no inventory for sale and customers go home empty - handed, awalting their orders. Custamers browse the store choosing style, color, ond leather type, with about foo displays to
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QUESTION 3 2 A set of Web development techniques using multiple Web technologies on the client side to create asynchronous Web applications that can send and retrieve data from a server asynchronously ( in the background ) without interfering with the display and behavior of the existing page. AJAX ODBC SQL DBMS QUESTION 3 3 A document that
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c programing. can you check my work? Given the following variable declarations complete the table below. Assume the proper header files have been included. char a. 20. f . 16 ; int d e -20, f. 16 : int *p = NULL , **q = NULL , r = NULL; double hull; t = NULL, * = NULL; 1. 107_70] For each expression list what the variable declaration would look
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Define the following phrases and write their differences: Text, Hypertext and Metadata.

solve it with 8051 program ( keil or edsim ) Develop 8051 assembly program using a simulator to do the following: Read a sequence of ten 8-bit signed numbers stored in ROM, sum the absolute values of these numbers and store the 16-bit sum in RAM locations 40H(LSB) and 41H(MSB). Test your program with the following sets of data: a) -45, 88, -19,
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Lab3 For Lab 3 you will code integer division by iterative subtraction. Division is a process that counts the number of divisors there are in the quotient plus a remainder. The remainder is a number less than the divisor. This lab will focus on: Looping Compare and jump statements Printing messages to the screen Skipping lines for more readable

Congratulations on being provided your first programming task at the grocery store chain where you were recently hired as a computer programmer to create a Grocery Calculator. You will begin your very first coding assignment this module. Your project will incrementally evolve during the next several modules. Your first task is to create the
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What would be the best - case time complexity of the InsertInOrder ( key , A , n algorithm whose pseudo - code is given below? O ( n ) O ( l o g n ) O ( n 2 ) O ( 1 )
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Review the following partial UML class diagram. Which answer provides the best interpretation of the multiplicities for the association between the Inventory class and the Sales class?

Discuss the general format for using the Pipe Operator (|) - provide TWO examples Discuss what can be accomplished with SED - provide TWO examples In addition provide Unix/Linux script ONE example each for the if, for, while, and case statements.

Which of the following is an example of volatile memory?
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need asap pls Question Three (20 marks) Write a C language console application that contains the following requirements: The program should output a customised pictorial art. The pictorial art should contain at least ten different characters (including the space). The pictorial art should contain the student first name as a part of the whole
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Could you please tell me how to write this program in c language The values of the Combinations function used in the text are often displayed in the form of a triangle using the following arrangement: C(0,0) C(1,0) C(1,1) C(2,0) C(2,1) C(2,2) C(3,0) C(3,1)C(3,2) C(3,3) C(4,0) C(4,1) C(4,2) C(4,3) C(4,4) and so on. this figure is called Pascal's
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Calculate frequency and create a frequency distribution for the products in the database using the input range and bin range steps demonstrated in Chapter 4 .
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What causes a user to react a certain way while taking a hallucinogen?

Question 4 ( 4 points ) WEP uses a synchronous stream cipher which is unsuitable for the wireless medium. True False
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Scenario As a recent graduate of SNHU, youve taken the time to consider the type of work you really want to do and therefore have focused your job search on junior developer positions. In searching the major job boards, you discover Chada Tech. Chada Tech is a software engineering company that specializes in custom software design and development

Describe a recursive algorithm for finding the maximum element in an array A of n elements. What is your running time and space usage?

Design a microcomputer system using a uP 8086 10MHz. This system must have a Coprocessor 8087, a parallel connector, a serial connector, ADC and DAC connectors for data conversion, a 16 byte seven segment display, a 64-key matrix keyboard, a USB connector thru a DMA for high speed data transfer. A special connector to connect a printer. The system
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Z 1 6 . Shkruani nj program n gjuh n python p r t shtypur shum n e 1 0 numrave t par ift

1. Recall that a floating-point number can be expressed as where s, f and e are binary numbers. Recall that s is the sign indicator, f the mantissa or fractional part), and e the (signed) exponent. Suppose the sign is 1 bit long, the mantissa 20 bits long, and the exponent has 8 bits. What are the largest and smallest positive numbers in this
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8 . What form does the following argument have and is it valid?P 1 . If my senses have fooled me in the past, then they could be fooling me now and always.P 2 . My senses have fooled me in the past.C 1 . My sense could be fooling me now and always.

Q) Suppose you have to create list of elements to sort ( USE INSERTION SORT) . For that create a menu driven program in c/c++ that should have following menu:- 1. Check whether the input elements belong to character input. 2. Arrange in ascending order. 3. Arrange in descending order.

10. The logical operator I| has higher precedence than && a. true b. false c. they have the same rank Answer: 11. Which of the following Boolean assignment statements is valid? a. boolean a true'; b, boolean a=true; c. boolean a "true" d. boolean a -TRUE Answer 12. Which of the following is NOT a logical operator? ?. % Answer: 13. The operands of
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A university wants to develop its Learning Management System (LMS) through which university wants to manage its tasks like admissions, registration, allocation of courses to faculty, arrangement of students to appropriate classes and appropriate study programs according to BS programs opted by the students and final admission decision made by the

Define a class Candidate in C++ with the following specification : [Delhi, 2015] Private Mumbers: A data members Rno (Registration Number) type long A data member Cname of type string A data members Agg_marks (Aggregate Marks) of type float A data members Grade of type char A member function setGrade() to find the grade as per the aggregate marks
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What goes in the blank? Complete the statement below so that it will list the book written by an author with the last name of Adams. SELECT Title, AuthorLast FROM Books B ______________ JOIN Authors A ON BA.AuthorID = A.AuthorID WHERE AuthorLast = 'Adams';

Using either the command line or MySql Workbench, create a schema/database. Name the database Relational_Database. Use the .sql scripts to create the tables and insert all the data. There are tables that are redundant and possibly can be combined because they may have the same attributes. Please go ahead and combine them. Rename the tables with

A technological advance in the production of the first code increases the opportunity cost of the first code in terms of the second code good

Will the object file corresponding to the following C file be huge (more than 100MB)? -Dee -W21-DAY -W21-02 -W21-DP int x[100 * 1024 * 1024]; II- VTI- in the .bss section. A. No, it will be tiny, since x will be "Sto. In B. There is no way to know, it depends on the CPU architecture 21-DPU C. This is not a valid C file, it cannot compile to an
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Ex1. DLL2BST (15 points) Add a constructor that constructs the binary search tree from the given DLList. BST ::BST(const DLL & list) Find the Second Minimum () Write a member function called int BST ::Find_Second_Minimum() const. The function retrieves the value of the node that has the second minimum value in the current BST. The second minimum
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Platform Independent Solution Please see Syllabus for more information. Your solution has to be platform-independent; it must run on any platforms including any online IDEs: You solution should be free of any use of packages. Example, absolutely no /* Java Program Example - Java Import Packages */ package YOUR_CUSTOM_PACKAGE HERE; Your solution,

Create a Python program named CST _ 1 5 0 _ Ingredient _ Adjuster. py - Define variables for the original amounts of ingredients as follows: sugar _ per _ cookie = 1 . 5 / 4 8 ( cups of sugar per cookie ) butter _ per _ cookie = 1 / 4 8 ( cup of butter per cookie ) flour _ per _ cookie = 2 . 7 5 / 4 8 ( cups of flour per cookie ) In the main part

the app is whatsapp Tasks 1. Choose one application/software from the above list. 2- Create for each quality characteristic of the ISO 25010 product quality model, one "good" requirement (you have to choose just one specific sub-characteristic) suitable to your chosen application/software. Try to make it as simple as possible. 3- Justify with a
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is the semi colon at the end of a line of code is generally and optional piece of syntax in the MATLAB programming language

methods cannot access any non - static members in their own class.
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Answer in Pseudo Code for Sudoku. Please answer Task 8. Complete function template: MAKESOLUTION. Please answer in PSEUDO Code. Please avoid actual Program Language Below are the previous tasks as a reference only. Please DO not complete MakeVector(row) that has been completed. Please help with Task 8. The Question is based on the previous Tasks
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t Creating a Worksheet and Charting Data Michelle Barry, President of Pro Fit Marietta, needs a worksheet that summarizes the following data regarding the first quarter sales of training videos. Michelle would like the worksheet to include a calculation of the total sales for each type of video and a total of the sales of all of the videos. She
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b . ( 1 mark ) Consider the call fib ( n ) for any n > = 2 0 . How many times will fib ( n - 2 ) be called? Solution: fib ( n - 2 ) is going to get called F ( n ( n - 2 ) + 1 ) = F ( 3 ) = 2 . fib ( n ) fib ( n - 1 ) fib ( n - 2 ) fib ( n - 2 ) fib ( n - 3 )

Task: Enhance a basic to - do list application by breaking it down into multiple components. Step 1 : Set Up A Development Environment ( E n s u r e using node. j s ) Step 2 : Create a New Angular Project Step 3 : Create Components for the To - Do List Generate a new component named "todo - list" using the Angular CLI: " ng generate component todo

1. The transform property used for the Safari Web browser is written as ___________. -webkit-transform: -moz-transform: -o-transform: transform:

Q 8 . 2 . Represent each of these relations on { 1 , 2 , 3 , 4 } with a matrix ( with the elements of this set listed in increasing order ) . ( a ) { ( 1 , 2 ) , ( 1 , 3 ) , ( 1 , 4 ) , ( 2 , 3 ) , ( 2 , 4 ) , ( 3 , 4 ) }
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What does the following code print when it is invoked from the command line with funone. Be reasonably careful with the spacing. Note that blanks is a built-in function which generates a string with the specified number of spaces. function funone() a = 0: indent(a, 'hello'): funtwo(a + 3): indent (a, 'ciao'): funthree(a + 3): indent(a, 'done'):
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In the lectures we had a demonstration of a software package called Geneious. In the demo we trimmed the data using a tool called BBDuk. What did this operation accomplish? Group of answer choices

As a developer we will be interacting with various roles in the development of an application. After additional research discuss two ways a developer needs to interact with the software project manager during application development. Be sure to include the reasons for your analysis.

ITEC320 - Taski Use the UML diagram given below to create the class Customer custid:int name:string city:string _init__(self): _init__(self, custid, name,city): getCustid(self): getName self): getCityl self): SetCustid/self, custid): setName(self, name) setCity(self, city): str_0 Instructions: The default constructor prompts user to enter data
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Selection structure: Switch vs if

C++ Add an input function and output formatting function in accordance with the requirements below in the following code. 1. Limit the maximum Loan Amount to $98,000.00 2. Accept the interest rate (4.5% as 4.5), and limit the interest rate to 19% maximum 3. Limit the Loan Duration to 6 years (using whole years) 4. Validate all input values for any

databa systems: introduction to database and data warehouse. e 3 . 5

We will work together to write a Java application EveryNth.java that takes a number as its only command - line parameter, reads words from a file redirected from the standard input ( a keyboard Scanner ) , then it should output every nth word, space - separated, from the text it read in , where n was specified as the program's command - line

Please help me on choosing the right answer. In HTML, what does the element define? a) content aside from the page content b)a navigation list to be shown at the left side of the page c)the ASCII character-set; to send information between computers on the internet

6. Determine the design parameters for an audio system: a. Determine the total bytes/sec required for an audio signal of 16 bits/ sample per channel, two channels, sampled at 44.1 kHz. b. Given a clock period P = 20 MHz for a bus, determine the bus width required assuming that non-burst mode transfers are used and D = O = 1. c. Given a clock

please solve in c the base template is given 3.30 Lab: Temperature Converter with a Menu The goal of this lab is to create a calculator to convert a temperature between different units. Print a menu of temperature units available as either an input or output to the calculator Ask the user for the units of the input temperature Use the unit_input
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PYTHON ONLY PLEASE Please do this in python and if you can include a flowchart so I can better understand for myself in the future *4.9 (Financial: compare costs) Suppose you shop for rice and find it in two different- sized packages. You would like to write a program to compare the costs of the packages. The program prompts the user to enter the
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(java) Suppose that the implementation of sorting by quick sort given below (see below) were changed as follows: Procedure partition is retained, but quickSort is eliminated, so that its work is done directly in sort. Is this change a good idea? What purpose does quickSort have? Discuss.

I need the answer of these 2 question as soon as possible. Please hurry 1. Write down next state and output equations for the following sequential circuit. From these equations analyze the sequential circuit and draw the transition diagram. x N si Q1 CK FF1 s2 Q2: CK FF2 R2 Q2 R1 QI" CK 2. Design a sequential circuit represented by the following
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9. In the proof (discussed in class) of the NP hardness of the 3SAT problem by re- duction from the SAT problem, we convert an arbitrary boolean expression in CNF (input of the SAT problem) to a boolean expression in 3CNF (where each clause has exactly three literals). (a) Please illustrate the conversion by giving the boolean expression that will
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add sound on click to this project help. import pygame import random # Initialize Pygame pygame.init ( ) WIDTH, HEIGHT = 8 0 0 , 6 0 0 screen = pygame.display.set _ mode ( ( WIDTH , HEIGHT ) ) clock = pygame.time.Clock ( ) class Ball: def _ _ init _ _ ( self , x , y , radius, mass, color ) : self.location = [ x , y ] self.vector = [ 0 , 0 ]

C++ please. Very confused :( cout //*********** Method with invalid input is Tested *********** DynamicArray Darr3(3); Darr3.addElement(20); Darr3.addElement(22); Darr3.setArraySize(1); if(Darr3.getArraySize() == 3){ cout //*********** Print Function is Tested *********** DynamicArray Darr4(1); Darr4.addElement(1); Darr4.addElement(2);
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Create a function called my_plot that takes the following inputs: A data matrix, where the first column is the x-values, and each additional column is the y-values for one data series A string array containing the names to use for the axis labels A string array containing the names to use for the legend A string to use for the title 1 The function
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Complete the below java program by adding the following methods: class Queue { private int front, rear, size; private int arrQ[]; Queue( int s) { front = -1; rear = -1; size = s; arrQ = new int [size]; } size() prints the number of elements in the queue. (void method) isEmpty() checks if the queue is empty or not. (return type is boolean) isFull()

Determine whether the given graph has a Hamilton circuit. If it does, find such a circuit. If it does not give an argument to show why no such circuit exists. a b 8 d
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Write a C++ declaration for one real number quantity to be called rate and for two integer quantities called orderOne and orderTwo. What is the output after the following sequence of statements is executed? (Assume that the integer variables A and B have been declared.) A = 12: B = 20: B=B + 1: A = A + B: cout
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1 Follow the instructions below regarding an array called fractions. a ) Define a symbolic constant SIZE with the replacement text 1 0 . b ) Define a double array with SIZE elements and initialize the elements to 0 . c ) Refer to array element 4 . d ) Assign the value 1 . 6 6 7 to array element nine. e ) Assign the value 3 . 3 3 3 to the seventh
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Hi there, I am trying to code this program in C and I am not able to get it to work for my homework. I feel like Ive tried everything, I will for sure thumbs up if you can help me figure out what is wrong. Here is the problem as well as what I have: Here is the error and suggestions to fix: Thank you! Assume that an int variable age has been
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