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Databases Questions and Answers January 27, 2021

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Data members are commonly declared as private, called ______, which is good software engineering. Public member functions provide the _______ with the outside world through their parameter lists and the returned data. Dynamically created object (using the new operator) can only be destroy by using the ______ operator. A derived class represents a
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Need help with this please asap (20) 7. Develop a Java program to prompt the user for the coordinates of the topleft corner of a square on the cartesian coordinate system (xx) and the length of its side (all integer numbers using an input dialog. Report square's properties, perimeter and area using an output dialogue. Perimeter = 4 X side Area =
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Overuse of visual enhancements will cause a document to appear cluttered and will defeat the purpose of creating an appealing, easy - to - read document. True False
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Create the following SQL Server queries that access the Northwind database. Place them in . txt format. Note: These problems all require aggregate processing with GROUP BY . - For each employee, list the employee ID , employee first name, employee last name, and count of orders taken in 1 9 9 6 . Place the list in descending order by the count of

the coding should be suitable for jupyter notebooks python Beta Distribution The Beta distribution can be used in analysis of population genetics, time allocation in project management, control systems, variability of soil properties, etc. It is given by the equation : r(a + B) f(x; a,) r(a)()* xa-1(1 x)B-1 Where: x must lie between the limits : 0
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create squence diagram for this code :

Your boss asks you to budget your production unit numbers 2% higher than last year, despite having no capital upgrades to your equipment nor increase in labour hours. By doing this, your boss is practicing the following technique:\ Kaizen budgeting\ Zero based budgeting\ Benchmarking\ Padding the budget Your boss asks you to budget your production
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Q 2 add new column to the colleges table: Column name address varchar 2 ( 5 0 ) . Q 3 Change the size of coll name from 2 0 to 3 0 Q 4 Remove the column name location Q 5 Add new constraint to colleges table unique to email . 2 . Labs \ table [ [ Filed Name,Data type,Size,Note ] , [ Llaband , Number, 6 , Primary key ] , [ Labadame , VARCHAR 2 , 2
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(EXTRA CREDIT - 20 points) The Bell numbers B(n) are defined by B(0)1 and B (n) = . : (n-1) B(i), for n > 0, write a recursive procedure to compute the Bell numbers. The binomial coefficient (.-1)can be computeda R) Get the input, n, from user and display the series of Bell numbers up to n. Your code should be able to print up to B(20)
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Entrepreneurship is the game changer now, name a renowned entrepreneur in the world (1 mark) 5b. Explain four (4) qualities the person possesses. (4marks) 5c. Intrapreneurship has many benefits, explain five (5) importance of Intrapreneurship in an organisation (10 marks)
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Engineers often work with logical operations. Logic is critical to dynamic control. An excellent example of this exists in transportation engineering. Conditional logic operations are needed to manage the complex track schedules for light - rail transit ( LRT ) systems. The following lab demonstrates input / output control for an LRT system. The

what will be the correct answer. Someone tells you the consensus protocol discussed in lecture for synchronous system:s is wrong because we do not know f (i.e., the number of failures in a group of processes). Your response is: (1 point) You can always set f=N, and the discussed algorithm would then be correct for synchronous systems. You can
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Add a way for the player to set the board size. Allow numbers which generate an odd number of cells to be chosen. The task is to find out why the game crashes if rows * cols is equal to an odd number and how to fix it .
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mprove the Bank Account Management Application as follows: 1 . Delete all the buttons in the Account spreadsheet with the exception of the Exit Button 2 . When the Start button is clicked then the Choose operation form is shown 3 . Write the event handler for the Initialization of the form, so that the form is shown it appears in the following

Assume A = -1, B = 1, C = 0, int D = 3, and int E = 2. What will be the result of the expression NOT (B*E*A GREATER THAN OR EQUAL A*B AND A GREATER THAN C OR B*E*A LESS THAN OR EQUAL A*B AND A LESS THAN C)

Question 33: Write a C++ program to evaluate the integral of f x = x 2 +1 over 0, 2 with 10 subintervals using the Composite Trapezoidal rule. Use a user-defined C++ function for evaluating f x at the different nodes ( i.e., for finding the values of f at the different nodes ) . #include I want these code to converted in PYTHON. it just a
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3. Let = {a, b} and L = {a n b 2n : n 0}. Find a grammar that generates L. 4. For = {a,b}, construct DFAs that accept the sets consisting of (a) all strings with exactly one a, (b) all strings with at least one a. 3. Let E = {a, b} and L = {a"b2n: n 2 0}. Find a grammar that generates L. 4. For E= {a,b}, construct DFAs that accept the sets
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Classes MerkleManager_Test AT TOP IN COMMENTS: ALL MEMBER NAMES IN GROUP Will have main method and will instantiate instance of MerkleManager and call manage function... that's it. MerkleManager Instance variables: Public & static & volatile String for Users entered word. Public & static String for user entered expected merkle root. Public &

Using F# 1) A fraction like 2/3 can be represented in F# as a pair of type int * int. Define infix operators .+ and .* to do addition and multiplication of fractions: > (1,2) .+ (1,3);; val it : int * int = (5, 6) > (1,2) .+ (2,3) .* (3,7);; val it : int * int = (11, 14) Note that the F# syntax for defining such an infix operator looks like this:

MdATLAB EXERCISE 2 A a ) Using the Z - Y - x ( - - ) Euler angle convention, write a MATLAB program to calculate the rotation matrix ? B A R when the user enters the Euler angles - - . Test for two examples: i ) = 1 0 , = 2 0 , = 3 0 . ii ) = 3 0 , = 9 0 , = - 5 5 . For case ( i ) , demonstrate the six constraints for unitary orthonormal rotation
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Expressing Algorithms - Finding the Maximum Number In this assignment, you will modify an existing algorithm to solve a slightly different problem. Problem 1 ( 1 point ) Please draw a flowchart for an algorithm that finds the two smallest values in the collection. You can assume that the collection has at least two values and that all values are
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A relation is in 3 NF if it satisfies 2 NF and which of the following?

1. Write a main program that displays a single frame with the title "My First Frame". Set the size to 800 by 800. Make the frame visible. Create a panel by using the JPanel constructor and add it to the frame. Use Color.RED (a constant in the java.awt package) along with the setBackground () method in JPane1, to set the color of the panel. Add a
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A pointer variable can take the address of a memory location as its value. Read the given program. #include a = 2 0 , b = 3 0 , ? * * p , ? * * q , ? * * * * r p = & a p = 5 0 q = & b ; ? * * q = 7 0 ; r = & p ; ? * * * * r = 9 0 a = 2 0 b = 8 0 1 s t
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QUESTION 1 Which statement is incorrect? partnums[ The statement int partnums[]={136, 122, 109, 146}; creates an array of size 4 The statement partnums[3] = 144; works regardless of whether partnums is an array or a vector The statement cout < < partnums.size() < < endl; works only if partnums is a vector 10 points QUESTION 2 Which statement is

Use matlab to write a function of the form [ dist ] = distPt 2 Pt ( x 1 , y 1 , x 2 , y 2 ) that returns the Euclidean dis - tance between the point ( x 1 , y 1 ) and the point ( x 2 , y 2 ) . Show the command window output for the case where ( x 1 , y 1 ) = ( - 1 , 3 ) and ( x 2 , y 2 ) = ( 5 , - 3 )

In SQL Server: Define a table column named ErrorInfo that can contains XML data and that can be validated using an XML schema named ErrorInfoSchema. The column cannot contain null values.

Which of the following is the term for whether or not an instance of one entity class must participate in a relationship with another entity class. ordinality degree maximum cardinality recursive cardinality minimum cardinality
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Comparison of IoT Protocols Performance More than ten years have passed since the concept of the Internet of Things (IoT) was introduced to the public. In this research, we aim to compare the performance of three IoT protocols, Advance Messaging Queuing Protocol (AMQP), Message Queuing Telemetry Transport (MQTT), Constrained Application Protocol

2.36 - Write a Python program to simulate an ecosystem containing two types of animals, bears and fish. The ecosystem consists of a river, which is modeled as a relatively large list. Each element of the list should be a Bear object, a Fish object, or None. In each time step of the simulation, in order, process each animal decision. Based on a

26:56 AM EST Here is another example of how I want you to document your test results. When you document your test results, please follow the approach I suggested previously where you have a test id, a description of the test, expected results and actual results as well as a comment column that will have information like See Exhibit 1 where Exhibit
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Describe the difference between black box testing and white box testing. Provide an example of both.

Partitioning Arrays The Partition algorithm for an array uses one of its elements, called a pivot, and returns a permutation of the array where the elements to the left of its position in the response are all smaller than it , and the elements to the right are all greater than or equal to it . Additionally, the function returns the new position of

Study the following code snippet: class Car { public: Car ( ) ; Car ( double new _ speed ) ; void set _ speed ( double new _ speed ) ; double get _ speed ( ) const; private: double speed; } ; class AeroCar : public Car { public: AeroCar ( ) ; AeroCar ( double new _ height ) ; AeroCar ( double new _ height, double new _ speed ) ; void set _ height

Which of the following statements about a data mart is not true? A data mart may contain a summarized portion of an organization's data. A data mart is a repository for raw, unstructured data. A data mart is a subset of a data warehouse. A data mart typically focuses on a single subject area or line of business. A data mart typically serves a
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Package javax.swing contains a class called Timer that is capable of calling method actionPerformed of interface ActionListener at a fixed time interval (specified in milliseconds). Modify your solution to Exercise to remove the call to repaint from method paintComponent. Declare your class to implement ActionListener. (The actionPerformed method
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Set background - color to coral for the element with id: exaggerate

Use the properties of Boolean Algebra to reduce the following Boolean expression to the simplest form possible A + B ( B A + A ) + A + B C

Q 1 . How many local networks exist in the following architecture?

Implement a Binary Search Tree, but include a pre - order, in - order, and post - order search. The search functions should take a root and an index. For Kudo points, please include an AVL tree that can be used to reorder the height of the BST . Do this first in P - code, then write it in Python. This function should work with any language.

A communications system sends a message with a bit rate of 4 Mbit 5-1. a. If it uses a coding rate of 1/3, what bit rate is used for the data transmission of the encoded message? b. In a threefold error-control system, a 0 bit is encoded to 000 and a 1 bit is encoded to 111. Describe how the error-control decoder can correct one-bit errors in the
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Problem Given two A and of the same indions by ar 3rd5th Consider the tow \ 1,2,3,4,5\ and [6, 7, 8, 9, 10) The [1/6,3/8,5+10]=\ 0.1667, in mind that above example the assessment case. You should utilize Code to Function script and thoroughly you function with more arguments before making a submission Task Write a function divide takes two inputs

SYSTEM ANALYSIS AND DESIGN Suppose you are reusing a use case C from the use case diagram of an old project into a new project. Such use case (which is detailed and broken down into multiple use cases) is used in the new use case diagram as is, with an < > relationship (more specifically, in the new diagram we have a use case D such that D extends

If = { x , y , z } is an alphabet, then x + y * * is a primitive regular expression over . True False
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What service in Windows Server 2 0 1 6 authenticates remote users and computers to the Windows domain and its corporate network resources? Group Policy Active Directory RAS ( Remote Access Service ) DirectAccess
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rewrite the following Verilog code into Verilog 2001 standard // Verilog Code: An 8-3 Priority Encoder (with FOR loop) module FOR_ENC8_3 (A,Y, Valid); //Valid = enable pin input [7:0] A; output reg [2:0] Y; output reg Valid; integer N; always @ (A) begin Valid = 0; Y = 3bX; for (N = 0; N < 8; N = N + 1) if (A[N]) begin Valid = 1; Y = N; end end

Requirements A car dealer wants your company to create a program tracking car inventory. In the first phase of the project you need to implement classes representing different types of vehicules: cars trucks Every car has some attributes: Make (e.g. Toyota) Model (e.g. Corolla) MaxNumberOfPassangers (possible values from 0 to 12) AllowedSpeedRange

Create a project titled Lab5_BMR with a single file titled bmr.cpp The program should calculate the person's Basal Metabolic Rate - the number of calories per day a person's body needs to function. Then, on the basis of calculated BMR, your program should output how many doughnuts a person can consume. A medium-size doughnut contains 195 calories.

PROJECT Java GUI Application: Java Jims Coffee Shoppe Objective To type a simple Java program, execute ( run ) the program for some particular values, observe the output and then modify the program. PROJECT DESCRIPTION Design an application that uses Java Graphical User Interface ( GUI ) components such as frames, text boxes, labels, checkboxes,

Router R 1 has a router - on - a - stick ( ROAS ) configuration with two subinterfaces of interface G 0 / 1 : G 0 / 1 . 1 and G 0 / 1 . 2 . Physical interface G 0 / 1 is currently in a down / down state. The network engineer then configures a shutdown command when in interface configuration mode for G 0 / 1 . 1 and a no shutdown command when in

* * Lab Description: * * Create a Verilog module named "grey _ code" which outputs all 1 6 min - terms of 4 bit grey code, given all 1 6 min - terms of normal binary code as input. Input Signals: A , B , C , D; Output Signal: F - 4 bits - Index zero should be the LSB of " F ' s " grey code output. Reference Zybook sections: 1 . 1 6 - 1 . 1 7

QUESTION 2 Planning for a Crisis is very essential, especially even in this Covid 19 era, explain five (5) importance of Crisis Management Plan. (15marks)
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QUESTION 6 You have two LANs connected via a router Network I has a DHCP server with a single Ethernet interface. Network 2 does not have a DHCP server. You want the hosts on Network 2 to be able to get IP addresses from the DHCP server on Network 1. What should you configure? a. Relay agent on Network 2 O b. Relay agent on Network 1 c.
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1 . Consider the stream cipher construction 3 . 3 0 . Let n = 1 2 8 . How many bits are required to represent the state st = s , IV , i > ?
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Question 5 ABC company is currently having a 48-port (all running at 100Mbps) switch connecting a DHCPv4server and 30 workstations. The switch has 17 vacant ports available. For network expansion, the company is planning to buy another switch of the same model and configuration in order to support another 30 workstations. The two switches will be
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Consider the following BNF grammar with as the start symbol: -> begin end -> | -> | | | -> = -> = -> if ( ) -> while ( ) -> byte | int | short -> a b c d -> | 1 | 2 | 3 | 4 | 5 -> + - | -> | -> -> == | != | | = In exercise-1.txt , write the leftmost derivation for the following snippet of code based on the BNF grammar above. Remember to expand
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Write a function in C++ programming language which will use Euclid's recursive algorithm to evaluate an input string which is a mathematical expression that contains a square root or a fraction, simplifies the square root or fraction into lowest terms, and prints the fraction to the console (no decimals allowed - integers only).

Employees at your company are watching videos constantly while using their office computers. The Web site sends compressed video through the Internet and com- pany network to employees computers, and the video stream consists of the following: 720 3 480 pixel frames 24-bit color (each pixel is represented by 24 bits) 30 frames per second 10:1

During our class discussion on shape - changing interfaces, we identified several challenges that could hinder the practical application of the systems depicted in the following picture. However, one specific challenge stood out as particularly significant in making the system impractical. Which of the following was it ? The system lacks
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Question 1: Follow these steps: 1. Copy the GCFIi-datacarve-FAT.dd file to your Linux virtual machine with Sleuth Kit and Autopsy installed. Start Sleuth Kit and Autopsy. In the main window, click New Case. In the Create a New Case dialog box, fill in your information (using GCFI- datacarve-FAT for the case name), and then click New Case. 2. In

A multi - plattered hard disk is divided into 8 0 0 sectors and 5 0 , 0 0 0 cylinders. There are six platter surfaces. Each block holds 5 1 2 bytes.

In lllustration 1 , Which line provides the definition of the 'printf' function for the compiler? Line 1 9 - printf ( " % d " , j ) ; Line 1 5 - void foo ( void ) Line 1 - #include
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C PROGRAMMING C PROGRAMMING Problem P.4 A linked list (8 points) Write a program that reads strings from standard input (the keyboard) and adds them to the beginning of a linked list. A ZZZ will quit the program. After each insertion the list should be printed to the screen. Implement a function struct list*insertBegin(struct list*, char str[])
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Consider the following program: #include int main ( void ) { printf ( " Parkinson 1 s Law: Work expands so as to " ) ; printf ( " fill the time " ) ; printf ( " available for its completion. " ) ; return 0 ; } ( a ) Identify the directives and statements in this program. ( b ) What output does the program produce?

How have computers influenced communication in society?

What is the keyword to include in a switch statemntent if the programmer wants tk have one output for any extraneous cases fhatthat are explicty not stated

A ______________ is an agreement about how communications are to proceed. A. principle B. prerequisite C. protocol

Chapter 3: (25 pts) 1. The following linear programming model formulation is used for the production of four different products, with two different manufacturing processes and two different material requirements: maximize Z = 50x + 58x2 + 46xz + 62x4 subject to 4x1 + 3.5x2 + 4.6x3 + 3.9x4
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Consider the following declarations for p and i: int i = 4 2 ; int * p = &i; Indicate which of the following accesses the value stored in i ( there may be more than one )

P7.12 in C++ 12 Write a program that simulates the control software for a "people mover" system. a set of driverless trains that move in two concentric circular tracks. A set of switches allows trains to switch tracks. In your program, the outer and inner tracks should each be divided into ten segments. Each track segment can contain a train that
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Notice that the printCard() function has been modified slightly to make things look good with the labels in boldface. To prepare to use this script, save it as cards.js. Next, you'll need to include the cards.js Script in a simple HTML document. Listing 8.5 shows the HTML document for this example. LISTING 8.5 The HTML File for the card Object
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Which is FALSE about arrays on the stack An array should have an effective size variable rrays are passed by reference If a functions changes the values in the array then the calling function has the changes also. The user can input size The user can input values The user can remove values
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The US Federal Trade Commission is trying to limit the control that firms like Google, Microsoft, and Amazon have over basic technology platforms and standards ( e . g . , web services, search, Al , etc. ) . From an evolution viewpoint, why might that be a good idea? ( Note: this is intended to be challenging! )
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Question 1: Question 2: The conversion macro toupper() returns an uppercase version of a lowercase character. If the argument is not a lowercase character, the original character is returned unchanged. Write your own version of toupper() without using the header file. Hint: The lowercase characters are all contiguous. Similarly, the uppercase
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A mail-order house sells five products whose retail prices are as follows: Product 1 = RM2.90; product 2 = RM4.50; product 3 = RM9.90; product 4 = 4.50 and product 5 = RM6.80. Write a Java program that reads a pair of values (i.e. representing the product number and the quantity sold), calculates and then displays the total retail value of all

Which one of the following is NOT true about Table Design View? Define the data Change field properties Shows many records of the data Validate the rules
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What is the name of the argument that can perform basic authentication when the API call is made?

;; Consider the following x64 assembly code .data myName db "My name is Michael. What is yours? .bss yourName db 10 .text global _start _start mov rax, 60 mov rdi, 0 syscall Question (Multiple choice question) a) This program will not run because it is not giving any output b) This program will not run because it does not have code to get input c)

(1) In the following network, you can assume that all router interfaces have already been configured with correct IP address according to the following address table Routing has also been configured in all routers allowing traffic to go from one network to another network DHCPv4 Server 1 has already been configured to provide dynamic IP address
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If an object is a tibble, it definitely will also be a Multiple choices possible data frame list vector function environment dipple continuation monad

What option is a continue intergration benefit?

A String that describes a search pattern for matching characters in other Strings is called a ( n ) regular expression . user input pattern . static pattern . validator .

please answer in java Create a ClemsonCricket class: Inherit from the cricket class Override the getChripCount() method. It should take an Environment object as a parameter Calculate the number of chirps for a Clemson Cricket which chirps 20% slower than the other Crickets. Hint, you should be able to call the getChirpCount() in your parent and
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A spreadsheet app is a type of productivity software. Yes No

Proposition: The signature of any r - cycle in S n is equal to ( - 1 ) r - 1 . Proof: Note that a typical r - cycle ( a 1 a 2 c d o t s a r ) We know that the signature of the r - cycle on Note that there are 2 - cycles on th Therefore the signature of the r - cycle must b a . Fill in the gaps in the proof. b . For a set S = { a 1 , dots, a n }
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a ) Calculate the determinant of matrix A . Problem 1 0 . 1 4 Recall that no all matrices have an inverse. A matrix is singular ( i . e . , it doesn't have an inverse ) if its determinant equals 0 ( i . e . , | A | = 0 ) . Use the determinant function to test whether each of the following matrices has an inverse. If an inverse exists, compute it .
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A certificate authority is a data file that identifies individuals or organizations online and is comparable to a digital signature. false true
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Please help me solve this question. please show your work and circle the answers. Thanks 7. Perform the following binary multiplications using Booth's algorithm, assuming two's complement numbers: (3 points) a) b) c) 1011 x 0101 0011 x 1011 1011 x 1100
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Can you write the code for this It's for Visual Basic I am having a hard time getting it to work Telling me error Thank u I will rate a good so other students can learn from this
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Can you help me to switch names about the keyword 'this' to other unique names? Because The keyword 'this' is prohibited this semester for us. I just a little confused that how I switch keyword 'this' to another unique name. Thank you! Here's the code public class Calendar { private String[] appointment; public Calendar() { this.appointment = new

Q1. Assume a stream of ten 1s. Encode the stream using the following schemes: NRZ-I, AMI, Manchester, Differential Manchester. How many transitions (vertical lines) are there for each scheme.

A foreign key in a relation R 1 is a candidate key in a relation R 2 .

What is the most appropriate primary key for the following table? customertable.JPG Group of answer choices Customer ID Order Date Distributor ID Order ID

At a local university, each engineering major requires a different number of credits for graduation. For example, recently the requirements were as follows: Civil engineering 130 Chemical engineering 13 Computer engineering 122 Electrical engineering 126.5 Mechanical Engineering 129 Prompt the user to select an engineering program from a menu. Use

( Discrete Mathematics ) Consider the following argument: Hypothesis: If you send me an e - mail message, then I will nish writing the program. If you do not send me an e - mail message, then I will go to sleep early. If I go to sleep early, then I will wake up feeling refreshed. I did not finish writing the program. Conclusion: Therefore, I will

execute the following instructions by hand, then find the final contents of ACCA, X, and the contents of location $C190. Algorithm Description The idea here is to compare the contents each time with the element found, add 1 to the counter (CTR) location. count.asm START EQU $C160 END EQU $C165 CTR EQU $C190 ORG $C000 CLR CTR LDX #START ;point to

Running a Java program on a computer requires:A ) a miniature program to be downloaded to the users computer.O B ) no specialized software, a lava is platfom independen.C ) a Java Virtual Machine to be installed on that computer. D ) the Mozilla Firefox browser and no other browsers.El a Java Virtual Machine to be installed on the sever hosting

Write a program that generates a few rows ( up to 5 ) of multiplication table similar to the following figure. You are required to use variables and named constants. For example, you may use a variable to represent row number and a named constant of string type for 1 x so that the first row 1 x 1 = 1 will be generated by output the named constant

Using an Arduino. Modify our original traffic light to have 2 sides, and let the user enter the time (in seconds for each color [red, yellow, green] We want the user delay to override the delay I have given as default value permanently. I use a MEGA 2560 Arduino. This is my origonal code. int ledDelay = 2000; int redPin = 10; int yellowPin = 9;

Interrupts are a key way in which hardware interacts with OS . A hardware device controller triggers an interrupt by sending a signal to CPU to inform the CPU that some event requires immediate attention. The interrupt is managed by the interrupt handler. true or fals

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