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Databases Questions and Answers January 04, 2021

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(4 points) Write a MATLAB program (a2q1.m) that begins by defining vectors x and y as follows: x=21,17,13,9,5andy=3,43,73,103,133 Use shorthand notation. Do not output the values in x and y. Then, use the vectors in element-by-element calculations to construct and output a vector z as follows: z=(xy)xy1+yx1 Finally, compute and output the mean of
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Using C++ language I need a program that plays the game of Connect Four. I need only 2 player mode: where the code will first display the empty board, below, I will publish what the board should look like and the code for it, then prompt the first player to select a column. After a column is selected, it has to output a new, updated board with the
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Which of the following is not a major function of search engines? Processing user queries Ranking obtained results Crawling different Web sites Storing data for offline browsing Indexing Web documents
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This is a Java program that simulates a game of Bingo: class Bingo { private Player[] players; public Bingo(Player[] players) { this.players = players; } public String play(int number) { for (int i = 0; i < players.length; i++) { players[i].markNumber(number); } String winners = ""; for (int i = 0; i < players.length; i++) { if

A differential backup covers what data on a system? a . It includes all data every time it is performed. b . It includes only data that has changed since the last backup. c . It includes data that has changed since the last full backup. d . It includes data that has changed since the last incremental backup.

(T, F) In Excel, the Goal seek feature is accessed through the What-if function option. (T, F) The Function, "=FV(RATE, NPER, PMT') is an example of statistical function in Excel. (T, F) The Function, '=NPV (RATE, RANGE)' calculates the net present value of an investment. (T, F)(We are using the '=PM(RATE, NPER, PV)' Function to calculate the
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Please provide a java code private class CiscArraylistiterator implements Iterator{ f / Stores the index of the next element to be returned. / 3 usages int nextIndex =1; nousages public object nextindex() \{ nextindext+; return elementData[nextindex]
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Python question. What is the value of this Python expression: "blue" == "Blue"? 1 point. True, blue, False, orange

what do you think is meant by Programming to an interface? What are some differences between Abstract Classes and Interfaces? Provide a simple example application with an interface definition and a class which implements the interface.

This diagram shows an example of memory configuration under dynamic partition- ing, after a number of placement and swapping-out operations have been carried out. Addresses go from left to right; gray areas indicate blocks occupied by processes; white areas indicate free memory blocks. The last process placed is 2-Mbyte and is marked with an X.
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ode Example 4-2 def get_volume(width, height, length=2): volume = width * height * length return volume def main(): l = 3 w = 4 h = 5 v = get_volume(l, w, h) print(v) if __name__ == "__main__": main() Refer to Code Example 4-2 : When this program runs, what does it print to the console? a. 24 b. 40 c. v d. 60

language is python 1. Triangle Class: (35 marks) Design a class named Triangle that extends the given Geometricobject class. The Triangle class contains: Three float data fields named sidel, side2, and side 3 to denote the three sides of the triangle. A constructor that creates a triangle with the specified sidel, side2, and side with default
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Homework 3 Addition/Subtraction and Multiplication in Binary Overview and Obiective In this homework, you will continue your practice with Boolean algebra and practice adding/subtracting numbers in binary. You will also have the opportunity to perform some binary multiplication Technical Description and Instructions For each of the following
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Give an example of a training set where the Perceptron algorithm will have an infinite mistake bound (i.e., if you keep running Perceptron over the same training set, it will continue to make mistakes). Prove/explain clearly your answer.

urgent Eve reads a Ciphertext = 12 sent to Bob in an RSA cryptosystem. What will be the value of Plaintext if the value of public key e is 5 and values of p and q are 7 and 5 respectively
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he given IP address 2 2 3 . 1 . 1 . 0 / 2 4 , what the notation ( 2 2 4 incores
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you are given string that consist of only * and ?

Assume that you are the team member in STM Company. You are asked to outline a security policy for The STM. In your answer you need to explain first the policy concept, then the CIA triad that must be followed for make the policy. Afterward, the policy must mention the approved staff (how are allowed to read modify the data), the conditions of

SLO #3. [ 50 points, evenly divided between the MATLAB solution and the 1. EXCEL solution]. Use the templates provided. Solve in both MATLAB and EXCEL. Given the numbers in the attached template. Some are positive, some are negative. Find the following: a. Sum of the even numbers. b. Sum of the odd numbers. c. Sum of the negative numbers. d. Sum
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(a) Precisely specify the conditions under which the following algorithm returns true, and then discuss, in detail, the running time of the algorithm. If you think it has different best- and worst-case running times then these should be considered separately, and you should explain the conditions under which best and worst-cases arise. You must
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In the Sequence diagram below, Watch, Display, Time are _______ use cases objects activations joins In the figure below, Watch, Display, Time are :Watch Display :WatchUser pressButton10blinkHoursO pressButton1O pressButton2O blinkMinutesO incrementMinutes() ! refreshO pressButtons1And2O commi tNewTimeC use cases objects activations joins
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Operating Systems Class: Discuss the pros or cons of mandatory file locks versus advisory locks.

I'm having hard time finding the Loop invariant, then using that to prove the initialization,maintenance, and termination phase. plz explain every step on the way I'm struggling with it. Thanks. 01 def head (Q): 02 return 0 [0] 32 33 L + S = S + return s R 03 def tail (0): 04 return 0[1:] Here is how head, tail, and mergesort. 05 def mergesort
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Ex 6 :Determine V o and I D for the network
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As discussed in week 1 2 , what technique used in Super Mario World speedrunning also found its way into ultra difficult Kaizo - style Super Mario World ROM hacks? Shell jumping Dolphin surfing Hyper dashing Mushroom skipping

test strategy for tic tac toe game

Coding for MyRectangleClassProgram.cpp

Triton ( also known as Trisis or Trisys ) is a malware package that targets safety instrumented systems ( SIS ) which monitor safety levels in the OT environment. More specifically, Triton is configured to target Schneider Electric s Triconex products which are used primarily in the oil and gas industry, but also in nuclear energy and

Distinguish between a modern and a traditional symmetric-key cipher

Which type of VPN configuration requires VPN software for the user to connect to VPN resources? Group of answer choices Full tunnel Clientless Split tunnel Client to site

Business Intelligence Course (15pts) Suppose your task as a software engineer at Company X is to design a data mining system to examine their internal data, which contains the following information such as: product name, location address, and order status, etc. Q2 Describe the architecture/B this architecture? lock diagram you would choose. What
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Question 1 Determine the number of bytes for data type, in the following programming languages: Not yet answered C++: bytes Marked out of 1.00 Flag question Java: bytes Question 2 Not yet answered Select ALL data structures. Marks will be deducted for wrong selections Marked out of 1.00 Select one or more: Flag question tree queue boolean class
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Q13- Chapter 3 Problem Set 26 (7 points) Explain the four criteria for proving the correctness of a logical pretest loop construct of the form while B do Send
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Which kind of attack is a result of the trusting nature if human beings?

Using multiple access points can accomplish which of the following? Minimize IP conflicts Decrease collision domains Extend the range for wireless connectivity Decrease broadcast domains
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Consider the part - machine processor indicator matrix shown in the following figure. There are 4 machines and 8 parts. Determine machine groups and corresponding part families using Rank - Order Clustering algorithm.

Draw a simple ERD diagram for each of the following examples. Include proper cardinality and all keys. Besides PK and FK, include one other attribute. Do these in Astah! Show how to "fix" M:N relationships 1. Political surveys designed by Gant Corporation are developed by only one specific team and are given to many recipients (the number of

How many bit would you need to address a 5 1 2 M x 3 2 memory

Decision Tree Consider the Coin weighing problem. Consider also the following algorithm: Weigh ABCD: EFGH. One side got to be lighter, which contains the counterfeit coin. Suppose ABCD is lighter (the opposite case is similar). In the second step weigh AB : CD. Again, one side is lighter, say AB. In the third step weigh A: B. Repeat the procedure
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In legacy classful addressing, what best describes a Class A network? Designed to support small networks with a maximum of 2 5 4 hosts. Designed to support the needs of moderate to large size networks with up to approximately 6 5 , 0 0 0 host addresses. Designed to support extremely large networks with more than 3 4 0 trillion host addresses.

Problem 2 (5 points) Submission procedure is the same as for Assignment 1. Create an ERD following the specifications below. A bank wishes to store the information about the payments for the mortgages this bank issued. For every mortgage the bank stores the unique mortgage ID, and the mortgage amount. Every mortgage is paid off in installment(s).
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Consider the following statements: x = [ 5 , 7 , 9 ] y = [ x , x ] x . append ( 1 1 ) What would be the expected value of y ? write the python code.

You are conducting a qualitative risk assessment for your organization. The two important risk elements that should weigh most heavily in your analysis of risk are probability and _ _ _ _ _ _ _ _ _ _ _ . This type of question contains radio buttons and checkboxes for selection of options. Use Tab for navigation and Enter or space to select the

Write a program that gets the number and a letter. If the letter is f, the program should treat the number entered as temperature in degrees Celsius and convert it into the temperature in degree Fahrenheit and print a suitable message. If the letter is c, the program should consider the number as Fahrenheit temperature and convert it to Celsius

Lab Description Write a program that will go through an array to see if the numbers are decreasing You must combine variables, ifs, and a loop to create a working method. There will always be at least one item in the array. Each prior number has to be greater than the following number for the array to be considered going down. Sample Data
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JAVA Define a class LinkedSet that represents a set and implements the interface given in Listing 1-5 of Chapter 1. Use the class LinkedBag in your implementation. Then write a program that adequately demonstrates your implementation. Requirements: You will develop the following: a. Develop the class LinkedSet which implements the SetInterface of

Solve the following system of three linear equations by creating (a) a row vector for x, y, and z, and (b) a column vector for x, y, and z (using matlab): -4x+3y+z=-18.2 5x+6y-2z=-48.8 2x-5y+4.5z=92.5

Using c++ Description For this assignment, you will be writing a single program that enters a loop in which each iteration prompts the user for two, single-line inputs. If the text of either one of the inputs is quit, the program should immediately exit. If quit is not found, each of these lines of input will be treated as a command line to be

There are 4 bugs in the following code. Debug the code. # include int main() { char operator; double Number1 Number2; printf("Please enter an operator (+, -, *, /): "); scanf("%c", &operator); printf("Plaese nnter two operands: "); scanf("%lf %lf",&Number1, &Number2); switch(operator) { case '+': printf("%.1lf + %.1lf = %.1lf",Number, Number2,

Can you draw a use class digram about gym using these functions and develop them if possible?Functions: - Download Mobile pplication: The user can download the application for free through the phone application store and it is available on the App Store for Apple devices and also on Google Play for Samsung devices - Create an account - Mobile

Scenario Mahey Research is small company specializing in the development of high - speed wireless products. The company occupies two office buildings in Washington DC . The Sales and Marketing ( S&M ) Group, and the larger Research and Development ( R&D ) Group are located at the Main Building. The Finance and Administration Groups occupy the
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Please write in ECLIPSE JAVA . Please no buffered readers. I am a beginner at this and would like explanations in the code to understand the material. You have to code the whole program(JAVA) and follow all the concepts. The output has to look exactly like the one shown below. Thank you. Objective: Write a program which simulates a hot potato
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Need help solving these questions...thank you common programming practice, called subroutine nesting, is to have one subroutine call another. O True O False
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Von Neumann's computer ideas on stored program computers has influenced modern day computers. What are some of the benefits today's computers have because of the Von Neumann architecture and why is this better?

Question 2 Not yet answered Marked out of 1 . 0 0 A ( n plan and develop the IS infrastructure, coordinate with the business units for IT services: a . IT standards services. b . Application software services. c . IT management services. d . IT educational services.
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What is tacacs and radius

The design of a computer uses interrupts to allow the peripheral devices to let the processor know when action is required. The design of such a system is illustrated in the Figure below. The interrupt output from the peripherals is active high, that is , the interrupt signal is taken high when an interrupt requires servicing. The processor has an
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C Programming c) You have been given two choices for opening a file as below: FILE *ap = fopen("cool", "ab+"); // choice a FILE *ap = fopen("cool", "a"); // choice B and also, another two choices for writing the int variable y to the file: fprintf (ap, "%d ", v); fwrite(&y, sizeof(int), 1, ap); // choice c // choice D i) State your combination of
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Question 1 7 These contain measurements of simple codes assigned to objects as labels, which are not measurements. interval data ordinal data numeric data nominal data
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3 . 3 3 Eificiently implement a queue class using a circular array. You may use a vector ( rather than a primitive array ) as the underlying array structure.
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hich of the following actions will add a second level of bullets to a bulleted list ?

i want the code of Java. Thank You Using stack to convert the infix expression into postfix: a-b/(cd) Also show the statues of stack after each step
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Use the K - map method to find the minimized product of sums expressions for the following Boolean functions: ( a ) f ( A , B , C ) = ( A o . B ) * C ( b ) f ( A , B , C , D ) = ? ? m i ( 1 , 2 , 4 , 5 , 1 0 , 1 4 ) + ? ? d i ( 0 , 6 , 1 3 , 1 5 ) where ? ? d i ( d o t s ) means the sum of minterms that correspond to don't care outputs.
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For your final project, you will build one Jupyter file that will generate a graphical user interface to showcase all the network protocols we've learned in our lab assignments. You must demonstrate the following protocols: ICMP, HTTP, SMTP, DNS, and FTP. Specifically: 1. Use Jupyter Widgets to create a user interface such as a Tab that will

what are the advantages of packaging the classes

( 5 marks ) A l and Bill are arguing about the performance of their sorting algorithms. Al claims that his O ( N l o g N ) - time algorithm is always faster than Bill's O ( N 2 ) - time algorithm, where N is the input size. To settle the issue, they implement and run the two algorithms on many randomly generated data sets. To Al's dismay, they
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Need help with this part of my java assignment, comments appreciated. This class extends class Expression and represents PrefixExpressions Interface for class PrefixExpression public PrefixExpression( String str) : This constructor receives a String containing the expression text. It will invoke the constructor for class Expression, passing in the

Artificial Intellegnce Question 4. (20 points) Backtracking with Forward Checking and MRV The following diagram shows the first 2 assignments (blue and red) using backtracking algorithm with Forward Checking and MRV. Graph Complex Algorithm Backtracking Ordering None OMRV MRV with LCV Filtering None Forward Checking Are Consistency Speed Speedup
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this is Data structures and algorithms, please answer them so i can check my answers 2. Write a pseudo code of a while-loop to find the sum of all multiples of 3 between x and y inclusively. You can assume that 0 1 is a prime number or not. Hints: (1) We can use a loop to check for each integer i smaller than x whether x is divisible by i. (2) If
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Question 1 3 0 . 5 p t s In the statement byte FIU = 1 0 ; byte FIU 1 0
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Lab 6 Write in C++ Often times multiple pieces of data comes from the user at once and requires parsing to separate the pieces of data for later use. Write a program which uses getline exclusively to fetch two address lines from the user. The first line is the address number and street name, and the second line is the town, state, and zipcode

The GeometricObject and Circle classes are defined in this chapter. Analyze the following code, Which statements are correct?public class Testpublic static void main ( String ( I args )

Prove the following statement: For x in , if x 5 3 is odd, then x is even. [ 5 points ] ( Most relevant reading: BoP 4 . 3 )

Which of the following step ( s ) is / are repeated until convergence in the K - Means clustering algorithm? a . Choosing the optimal K using the elbow method. b . Reassigning the cluster centroids by updating the coordinates based on Euclidea distance. c . Assigning the new cluster labels to the data points using updated centroids. d . Choosing

Create a query that will show the game id, game date, home team and visitor team. In your results, only show the first 3 teams by date. this is what I have... what date function do I use? use football; select gameID , gameDate , home_team , visitor_team from game;

PLEASE HELP ME FIX THIS CODE IN PYTHON Aardvark Problem program.py> strinput("Enter Line:") in str: The aardvark( digging foot) sa medium-sized, burrowing, nocturnal mammal native to Africa. Write a program to detect aardvarks in an input string Your program needs to find cases where the exact string aardvarkappears anywhere inside the input
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QUESTION 2 Stack X is an empty stack. Please fill in the blanks below after tracking the activities below step by step: X.push(7) X.push(4): X.push([3): Y1 = X popo: X.push(5); X.push(2) Y2 X popo: Y3 Xpeek: Y1 = Y2 Y3 from the bottom of the stack, use space in between elements) X= your presentation of should start QUESTION 3 The worst case for
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Answers all the questions in java 1. Write a simple Java Swing/AWT based application for Counter. The UI contains a Label ("Counter"), a non-editable TextField and 2 Buttons ("Count" and "Reset"). TextField will show the value of the counter. Clicking the "Count Button will increase the value of the counter by 1 and displays the value in the
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Department ( DeptNo , DeptName, Manager ) Employee ( EmployeelD , EmployeeName, EmployeeAddress, Salary ) Vendor ( VendorNo , VendorName, VendorAddress, PhoneNo, Balance ) Inventory ( ItemNo , Description, CostPrice, SellingPrice, QtyOnHand, Reorder Point ) Cash ( AccountNo , BranchName, AccountIype, AccountBalance ) ReceiveRequest ( RequestNo ,

What is the meaning of the SYN + ACK handshake in the 3 - way handshake? _ _ _ The server is asking for a synchronization request before the request can be accepted. _ _ _ The request is confirmed and the server is making a connection request. _ _ _ The client is asking the server to accept the synchronization request. _ _ _ The server is asking

Where is the draw table comments located

Consider the following relations. Students me he SOM 555-141 Sot 3-5300 500 S 06-23 DOB VO 22 100 100 500 Chat 1001 Title 1002 1001 1101 1400 3000 Sorg Datang Takes Course Courses How can you conceptually characterize/represent the above data/information using the Column Oriented NoSQL Data Model (show it diagrammatically)? Is there any loss of
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A general view of access control from a software perspective is that it is "someone else's problem" such as the operating system or the firewall. What is the reason for this attitude? Why is it good or bad? Justify your conclusion. Cryptography is one of the many security tools but is given more emphasis than most in the media and in most security

BubbleSort is a popular, but inefficient sorting algorithm. It works by repeatedly swapping adjacent elements that are out of order. The procedure BUBBLESORT sorts array [ 1 : ] .

Please convert following ERD to a schema First Last S ID Sec ID name 1,N 1,M Phone# Student take Section No of students Grade assigned ave Course MailBoxNo Mail Box Title C ID location
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Python assignment Getting started on your registration page: Here is a start of a registration function that creates a connection to the database and inserts specific values into the DB. Be sure to read the comments for hints and explanations. Be sure before you try this that you save the file in the same location you have saved your database
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Given the topology in the figure below, which of the following configuration commands is used to add the static routing to network 2 0 0 1 : 1 1 A A : : 6 4 to the routing table of Router 2 ? a . Router ( config ) # ipv 6 route 2 0 0 1 : 1 1 AA:: / 6 4 2 0 0 1 : 2 2 AA:: 2 b . Router ( config ) # ipv 6 route 2 0 0 1 : 1 1 AA:: 2 0 0 1 : 3 3 AA:: 1
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Which of the following Crow's Foot symbols can be placed at the location pointed to by the arrow in the figure below? Entity A The Crow's Foot symbol for many or 0 . The Crow's Foot symbol for many only. The Crow's Foot symbol for many or 1 . The Crow's Foot symbol for one only. The Crow's Foot symbol for 0 or 1 .
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What is an example of a screen lock method? OS updates Firewalls Facial recognition Device encryption 5 . What is a common mobile device security threat? SQL Injection Insecure Wi - Fi and "meddler - in - the - middle" attacks Zero - day attacks DDos
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Artificial Intellegnce Question Environment 6. (15 points) Reinforcement Learning a) Which parts of the diagram is the promise of Machine/Deep Learning? Why, explain your answer by giving examples. b) Which parts of the diagram is the promise of Reinforcement Learning? Why, explain your answer by giving examples Sensors Sensor Data Feature
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A high school has decided to create a library system to allow its students and teachers to borrow library items like books and CDs. The system shall keep a complete list of all items and their details including number, category, availability, and expected retum date. Students and teachers can request an imavailable item by going into that item
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Lab: MixString Given two strings, a and b, create a bigger string by mixing them. The mix is made of the 1st char of a, the 1st char of b, the 2nd char of a, the 2nd char of b, etc. Any leftover chars go at the end of the result. Input abc xyz Output axbycz Input Hi There Output HTihere Input xxxx There Output xTxhxexre
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A query is a question represented in a way that the DBMS can understand. ( Ch 4 ) True False
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Direction: Identify the value gap of each scenario and recommend possible solutions. An internet provider fails to resolve an Internet cabling problem in less than three ( 3 ) days. In contrast, they could fix the same issue in under two ( 2 ) days when the household experienced the same a month ago. The household issued report tickets. A startup
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using Matlab Consider two column vectors rai b a= a2 and b= b2 | b3 The dot product between a and b is given by the scalar d=a. b = a*b = a;b + a2b2 + a3b3- The dot product also satisfies the relationship a. b = |a||||b|| cos(@) where ||a|= va a is the length of a and is the angle between a and b. The cross product between a and b is given by the
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If i run the code i get the result ( 0.00 euros=0.00 USD), can you please point it out where and why it is not converting the value? I want to run the code using void function and the currency conversion is from euro to dollar. #include #include void ConvertToDollars (float euro); int main() { float euroPrice; printf("Enter Euro price: ",
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Programming Assignment 1 (100 points) USE ANDROID STUDIO MUST HAVE 2 PAGES 1 IS THE PIZZA PAGE AND THE OTHER PAGE IS THE CUSTOMER PAGE TO INPUT THEIR INFORMATION. MUST ROTATE. THANK YOU WILL THUMBS UP! (Just needs to be able to do everything listed below) Design a pizza ordering mobile application. This application will need to allow the user to

What is wrong with the following code? If ( X > 7 5 ) : print ( You have enough money ) Else: print ( You need more money to buy this item. ) Multiple select question. Statements inside the if and else clauses should be indented. Text to be displayed in print ( ) statements is not enclosed in quotes. There is no dollar sign before 7 5 in the

Prove the validity of the following sequents needed to secure the completeness result for propositional logic:

#include using namespace std; const int ARRAY _ SIZE = 5 ; int rand _ number ( ) { return rand ( ) % 4 1 - 2 0 ; } void populate _ rand _ numbers ( int matrix [ ] [ ARRAY _ SIZE ] ) { for ( int i = 0 ; i < ARRAY _ SIZE; + + i ) { for ( int j = 0 ; j < ARRAY _ SIZE; + + j ) { matrix [ i ] [ j ] = rand _ number ( ) ; } } } void print _ rand _

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