Answer:
See explaination
Explanation:
An Academic Database deals with the information pertaining to the records of students of an institute. The various fields which can be associated with a student are Name, Unique Identification Number, Marks in various subjects, Grades, Courses Taken and so on. Most of the fields mentioned above have some or other form of validation that is required for the DB to be consistent and follow the basic properties of a database.
One field where range validation can be used is MARKS. In the marks field, the range of marks will be say 0 to 100 and anything below 0 or above 100 must be reported to the database administrator. Another field where we can apply a range validation is AGE in which the range of age allowed could greater than say 10, if it is a college and maximum age could be say 60. Thus, the range check on the AGE field is 10 to 60.
One field where choice validation can be used is GENDER. In the gender field, there could be multiple choices like Male, Female and Others. Thus, out of the available choices we have to select only the available choice and only one choice must be selected where we can apply choice validation. Another field is COURSE, where we can have a list of courses a student can opt for and out of the available courses can select one.
Thus, there are multiple fields where we can apply various types of validation and it is important to explore the area for which the DB has been created understanding all the scenarios and attributes of the problems that are associated with that area.
4. What are the ethical issues of using password cracker and recovery tools? Are there any limitations, policies, or regulations in their use on local machines, home networks, or small business networks? Where might customer data be stored? Discuss any legal issues in using these tools on home networks in the United States, which has anti-wiretap communications regulations. Who must know about the tools being used in your household?
Answer:
There are no limitation, policies or regulations that limit these tools for use on privately owned machines or home networks. In most businesses networks, intranets or internets the use of them is illegal if used for malicious intent. Penetration testing teams sign rules of engagement before using these tools.
Explanation:
There are no limitation, limitations, policies, or regulations in their use on local machines, privately owned machines or home networks, or small business networks.
In most businesses networks, intranets or internets the use of them is often and mostly illegal especially in a situation where they are been used for malicious intent.
Penetration testing teams would often or always make sure that they sign rules of engagement before using these tools.
Create a class called Hangman. In this class, Create the following private variables: char word[40], progress[40], int word_length. word will be used to store the current word progress will be a dash representation of the the current word. It will be the same length as the current word. If word is set to ‘apple’, then progress should be "‑‑‑‑‑" at the beginning of the game. As the user guesses letters, progress will be updated with the correct guesses. For example, if the user guesses ‘p’ then progress will look like "‑pp‑‑" Create a private function void clear_progress(int length). This function will set progress to contain all dashes of length length. If this function is called as clear_progress(10), this will set progress to "‑‑‑‑‑‑‑‑‑‑". Remember that progress is a character array; don’t forget your null terminator. Create the following protected data members: int matches, char last_guess, string chars_guessed, int wrong_guesses, int remaining. Create a public function void initialize(string start). This function will initialize chars_guessed to a blank string, wrong_guesses to 0. Set remaining to 6. Use strcpy() to set word to the starting word passed as start (You can use start.c_str() to convert it to a character array). Set word_length to the length of word. Call clear_progress in this function.
Answer:
See explaination
Explanation:
#include <cstring>
#include <cstdio>
#include <string>
#include <array>
#include <random>
#include <algorithm>
struct RandomGenerator {
RandomGenerator(const size_t min, const size_t max) : dist(min, max) {}
std::random_device rd;
std::uniform_int_distribution<size_t> dist;
unsigned operator()() { return dist(rd); }
};
struct Gallow {
void Draw() const
{
std::printf(" ________\n"
"| |\n"
"| %c %c\n"
"| %c%c%c\n"
"| %c %c\n"
"|\n"
"|\n", body[0], body[1], body[2], body[3],
body[4], body[5], body[6]);
}
bool Increment()
{
switch (++errors) {
case 6: body[6] = '\\'; break;
case 5: body[5] = '/'; break;
case 4: body[4] = '\\'; break;
case 3: body[3] = '|'; break;
case 2: body[2] = '/'; break;
case 1: body[0] = '(', body[1] = ')'; break;
}
return errors < 6;
}
char body[7] { '\0' };
int errors { 0 };
};
struct Game {
void Draw() const
{
#ifdef _WIN32
std::system("cls");
#else
std::system("clear");
#endif
gallow.Draw();
std::for_each(guess.begin(), guess.end(), [](const char c) { std::printf("%c ", c); });
std::putchar('\n');
}
bool Update()
{
std::printf("Enter a letter: ");
const char letter = std::tolower(std::getchar());
while (std::getchar() != '\n') {}
bool found = false;
for (size_t i = 0; i < word.size(); ++i) {
if (word[i] == letter) {
guess[i] = letter;
found = true;
}
}
const auto end_game = [this](const char* msg) {
Draw();
std::puts(msg);
return false;
};
if (not found and not gallow.Increment())
return end_game("#### you lose! ####");
else if (found and word == guess)
return end_game("#### you win! ####");
return true;
}
RandomGenerator rand_gen { 0, words.size() - 1 };
const std::string word { words[rand_gen()] };
std::string guess { std::string().insert(0, word.size(), '_') };
Gallow gallow;
static const std::array<const std::string, 3> words;
};
const std::array<const std::string, 3> Game::words{{"control", "television", "computer"}};
int main()
{
Game game;
do {
game.Draw();
} while (game.Update());
return EXIT_SUCCESS;
}
Fill in the empty function so that it returns the sum of all the divisors of a number, without including it. A divisor is a number that divides into another without a remainder. in python
Program explanation:
In the given program code, a method "sum_divisors" is declared that takes "n" variable in its parameter.Inside the method, the "s" variable is declared, which holds a value which is "0", and used a for loop that defines counts the range values.In the loop, a conditional statement is declared that check remainder value equal to 0 and adds value in "s" variable and return its value.Program code:
def sum_divisors(n):#defining a method sum_divisors that takes a parameter
s = 0#defining a variable s that hold a value 0
for x in range(1,n):#defining a for loop that use n variable to check range value
if(n%x==0):#use if to check remainder value equal to 0
s += x#adding value in s variable
return s#return s value
print(sum_divisors(6))#calling method
print(sum_divisors(12))#calling method
Output:
Please find the attached file.
Learn more:
brainly.com/question/14704583
The Monte Carlo (MC) Method (Monte Carlo Simulation) was first published in 1949 by Nicholas Metropolis and Stanislaw Ulam in the work "The Monte Carlo Method" in the Journal of American Statistics Association. The name Monte Carlo has its origins in the fact that Ulam had an uncle who regularly gambled at the Monte Carlo casino in Monaco. In fact, way before 1949 the method had already been extensively used as a secret project of the U.S. Defense Department during the so-called "Manhattan Project". The basic principle of the Monte Carlo Method is to implement on a computer the Strong Law of Large Numbers (SLLN) (see also Lecture 9). The Monte Carlo Method is also typically used as a probabilistic method to numerically compute an approximation of a quantity that is very hard or even impossible to compute exactly like, e.g., integrals (in particular, integrals in very high dimensions!). The goal of Problem 2 is to write a Python code to estimate the irrational number
Answer:
can you give more detail
Explanation:
Describe the series of connections that would be made, equipment and protocol changes, if you connected your laptop to a wireless hotspot and opened your email program and sent an email to someone. Think of all the layers and the round trip the information will likely make.
Answer:
Check Explanation.
Explanation:
Immediately there is a connection between your laptop and the wireless hotspot, data will be transferred via the Physical layer that will be used for encoding of the network and the modulation of the network and that layer is called the OSI MODEL.
Another Important layer is the APPLICATION LAYER in which its main aim and objectives is for support that is to say it is used in software supporting.
The next layer is the PRESENTATION LAYER which is used during the process of sending the e-mail. This layer is a very important layer because it helps to back up your data and it is also been used to make connections of sessions between servers of different computers
Caches are important to providing a high-performance memory hierarchy to processors. Below is a list of 32-bits memory address references given as word addresses. 0x03, 0xb4, 0x2b, 0x02, 0xbf, 0x58, 0xbe, 0x0e, 0xb5, 0x2c, 0xba, 0xfd For each of these references identify the binary word address, the tag, and the index given a direct mapped cache with 16 one-word blocks. Also list whether each reference is a hit or a miss, assuming the cache is initially empty.
Answer:
See explaination
Explanation:
please kindly see attachment for the step by step solution of the given problem.
what should i name my slideshow if its about intellectual property, fair use, and copyright
Answer:
You should name it honest and sincere intention
Explanation:
That is a good name for what you are going to talk about in your slideshow.
An organization’s SOC analyst, through examination of the company’s SIEM, discovers what she believes is Chinese-state sponsored espionage activity on the company’s network. Management agrees with her initial findings given the forensic artifacts she presents are characteristics of malware, but management is unclear on why the analyst thought it was Chinese-state sponsored. You have been brought in as a consultant to help determine 1) whether the systems have been compromised and 2) whether the analyst’s assertion has valid grounds to believe it is Chinese state-sponsored. What steps would you take to answer these questions given that you have been provided a MD5 hashes, two call back domains, and an email that is believed to have been used to conduct a spearphishing attack associated with the corresponding MD5 hash. What other threat intelligence can be generated from this information and how would that help shape your assessment?
Answer: Provided in the explanation segment
Explanation:
Below is a detailed explanation to make this problem more clearer to understand.
(1). We are asked to determine whether the systems have been compromised;
Ans: (YES) From the question given, We can see that the System is compromised. This is so because the plan of communication has different details of scenarios where incidents occur. This communication plan has a well read table of contents that lists specific type of incidents, where each incident has a brief description of the event.
(2). Whether the analyst’s assertion has valid grounds to believe it is Chinese state-sponsored.
Ans: I can say that the analyst uses several different internet protocol address located in so as to conduct its operations, in one instance, a log file recovered form an open indexed server revealed tham an IP address located is used to administer the command control node that was communicating with the malware.
(3). What other threat intelligence can be generated from this information?
Ans: The threat that can be generated from this include; Custom backdoors, Strategic web compromises, and also Web Server exploitation.
(4). How would that help shape your assessment?
Ans: This helps in such a way where information is gathered and transferred out of the target network which involve movement of files through multiple systems.
Files also gotten from networks as well as using tools (archival) to compress and also encrypt data with effectiveness of their data theft.
cheers i hope this helped!!!
Create a program that generates a report that displays a list of students, classes they are enrolled in and the professor who teaches that class. There are 3 files that provide the input data: 1. FinalRoster.txt : List of students and professors ( S: student, P: professor) Student row: S,Student Name, StudentID Professor row: P, Professor Name, Professor ID, Highest Education 2. FinalClassList.txt: List of classes and professor who teach them (ClassID, ClassName, ID of Professor who teach that class) 3. FinalStudentClassList.txt: List of classes the students are enrolled in. (StudentID, ClassID) The output shall be displayed on screen and stored in a file in the format described in FinalOutput.txt You will need to apply all course concepts in your solution. 1. Student and Professor should be derived from a super class "Person" 2. Every class should implement toString method to return data in the format required for output 3. Exception handling (e.g. FileNotFound etc.) must be implemented 4. Source code must be documented in JavaDoc format 5. Do not hard code number of students, professors or classes. Submit source Java files, the output file and screenshot of the output in a zip format
Answer:
All the classes are mentioned with code and screenshots. . That class is shown at last.
Explanation:
Solution
Class.Java:
Code
**
* atauthor your_name
* This class denotes Class at the college.
*
*/
public class Class {
private String className,classID;
private Professor professor;
/**
* atparam className
* atparam classID
* atparam professor
*/
public Class(String className, String classID, Professor professor) {
this.classID=classID;
this.className=className;
this.professor=professor;
}
/**
* at return classID of the class
*/
public String getClassID() {
return classID;
}
/**
* Override toString() from Object Class
*/
public String toString() {
return classID+" "+className+" "+professor.getName()+" "+professor.getEducation();
}
}
Person.Java:
Code:
/**
* atauthor your_name
* This class represents Person
*
*/
public class Person {
protected String name;
/**method to fetch name
* at return
*/
public String getName() {
return name;
}
/**method to set name
* at param name
*/
public void setName(String name) {
this.name = name;
}
Professor.java:
Code:
import java.util.ArrayList;
import java.util.List;
/**
* at author your_name
*
*This class represents professors
*
*/
public class Professor extends Person{
private String professorID, education;
private List<Class> classes=new ArrayList<Class>();
/**
* at param name
* at param professorID
* at param education
*/
public Professor(String name,String professorID,String education) {
this.name=name;
this.professorID=professorID;
this.education=education;
}
/**
* at return
*/
public String getEducation() {
return this.education;
}
/**
* at return
*/
public String getprofessorID() {
return this.professorID;
}
/** to add classes
* at param Class
*/
public void addClass(Class c) {
classes.add(c);
}
/**
* Override toString() from Object Class
*/
public String toString() {
String result=this.getName()+" - "+professorID+" - "+education;
for(Class c:classes) {
result+=c.toString()+"\n";
}
return result;
}
}
}
Student.java:
Code:
import java.util.ArrayList;
import java.util.List;
/**
* This class represents students
* at author your_Name
*
*/
public class Student extends Person{
private String studentID;
private List<Class> classes=new ArrayList<Class>();
/**
* atparam name
* atparam studentID
*/
public Student(String name,String studentID) {
this.name=name;
this.studentID=studentID;
}
/**
* atreturn
*/
public String getStudentID() {
return studentID;
}
/**
* atparam c
*/
public void addClass(Class c) {
classes.add(c);
}
/**
* atreturn
*/
public int getClassCount() {
return classes.size();
}
/**
* Override toString() from Object Class
*/
public String toString() {
String result=this.getName()+" - "+studentID+"\n";
for(Class c:classes) {
result+=c.toString()+"\n";
}
return result;
}
}
NOTE: Kindly find an attached copy of screenshot of the output, which is a part of the solution to this question
The cord of a bow string drill was used for
a. holding the cutting tool.
b. providing power for rotation.
c. transportation of the drill.
d. finding the center of the hole.
Answer:
I don't remember much on this stuff but I think it was B
Suppose that a program's data and executable code require 1,024 bytes of memory. A new section of code must be added; it will be used with various values 70 times during the execution of a program. When implemented as a macro, the macro code requires 73 bytes of memory. When implemented as a procedure, the procedure code requires 132 bytes (including parameter-passing, etc.), and each procedure call requires 7 bytes. How many bytes of memory will the entire program require if the new code is added as a procedure? 1,646
Answer:
The answer is 1646
Explanation:
The original code requires 1024 bytes and is called 70 times ,it requires 7 byte and its size is 132 bytes
1024 + (70*7) + 132 = 1024 + 490 +132
= 1646
*Sometimes it is difficult to convince top management to commit funds to develop and implement a SIS why*
Step-by-step Explanation:
SIS stands for: The Student Information System (SIS).
This system (a secure, web-based accessible by students, parents and staff) supports all aspects of a student’s educational experience, and other information. Examples are academic programs, test grades, health information, scheduling, etc.
It is difficult to convince top management to commit funds to develop and implement SIS, this can be due to a thousand reasons.
The obvious is that the management don't see the need for it. They would rather have students go through the educational process the same way they did. Perhaps, they just don't trust the whole process, they feel more in-charge while using a manual process.
Select the correct navigational path to create the function syntax to use the IF function.
Click the Formula tab on the ribbon and look in the ???
'gallery
Select the range of cells.
Then, begin the formula with the ????? click ?????. and click OK.
Add the arguments into the boxes for Logical Test, Value_if_True, and Value_if_False.
Answer:
1. Logical
2.=
3.IF
Explanation:
just did the assignment
Create a program in Python that prompts the user to enter an integer number within the range of 1 to 10 inclusive. The program should display “correct input” if the input is within the given range else it should display “wrong input”.
Python Code with Explanation:
# create a function named func to implement the required logic
def func():
# get the input from the user and store it in a variable named number
number = int(input("Please enter an integer between 1 to 10 inclusive\n"))
# if the input number is equal or greater than 1 and equal to 10 or less then the input is correct
if number>=1 and number<=10:
# print correct input
return print("Correct input")
# else the input is wrong
else:
# print wrong input
return print("Wrong input")
# call the function func
func()
Output:
Test 1:
Please enter an integer between 1 to 10 inclusive
4
Correct input
Test 2:
Please enter an integer between 1 to 10 inclusive
0
Wrong input
Test 3:
Please enter an integer between 1 to 10 inclusive
11
Wrong input
Answer:
dont know if it works!
Explanation:
input=(input("enter number")
if input > 1
print("correct input")
if input <10
print("correct input")
else
print("wrong input")
A company that wants to send data over the Internet has asked you to write a program that will encrypt it so that it may be transmitted more securely. All the data is transmitted as four-digit integers. Your app should read a four-digit integer entered by the user and encrypt it as follows: Replace each digit with the result of adding 7 to the digit and getting the remainder after dividing the new value by 10. Then swap the first digit with the third, and swap the second digit with the fourth. Then display the encrypted integer. Write a separate app that inputs an encrypted four-digit integer and decrypts it (by reversing the encryption scheme) to form the original number. Use the format specifier D4 to display the encrypted value in case the number starts with a 0
Answer:
The output of the code:
Enter a 4 digit integer : 1 2 3 4
The decrypted number is : 0 1 8 9
The original number is : 1 2 3 4
Explanation:
Okay, the code will be written in Java(programming language) and the file must be saved as "Encryption.java."
Here is the code, you can just copy and paste the code;
import java.util.Scanner;
public class Encryption {
public static String encrypt(String number) {
int arr[] = new int[4];
for(int i=0;i<4;i++) {
char ch = number.charAt(i);
arr[i] = Character.getNumericValue(ch);
}
for(int i=0;i<4;i++) {
int temp = arr[i] ;
temp += 7 ;
temp = temp % 10 ;
arr[i] = temp ;
}
int temp = arr[0];
arr[0] = arr[2];
arr[2]= temp ;
temp = arr[1];
arr[1] =arr[3];
arr[3] = temp ;
int newNumber = 0 ;
for(int i=0;i<4;i++)
newNumber = newNumber * 10 + arr[i];
String output = Integer.toString(newNumber);
if(arr[0]==0)
output = "0"+output;
return output;
}
public static String decrypt(String number) {
int arr[] = new int[4];
for(int i=0;i<4;i++) {
char ch = number.charAt(i);
arr[i] = Character.getNumericValue(ch);
}
int temp = arr[0];
arr[0]=arr[2];
arr[2]=temp;
temp = arr[1];
arr[1]=arr[3];
arr[3]=temp;
for(int i=0;i<4;i++) {
int digit = arr[i];
switch(digit) {
case 0:
arr[i] = 3;
break;
case 1:
arr[i] = 4;
break;
case 2:
arr[i] = 5;
break;
case 3:
arr[i] = 6;
break;
case 4:
arr[i] = 7;
break;
case 5:
arr[i] = 8;
break;
case 6:
arr[i] = 9;
break;
case 7:
arr[i] = 0;
break;
case 8:
arr[i] = 1;
break;
case 9:
arr[i] = 2;
break;
}
}
int newNumber = 0 ;
for(int i=0;i<4;i++)
newNumber = newNumber * 10 + arr[i];
String output = Integer.toString(newNumber);
if(arr[0]==0)
output = "0"+output;
return output;
}
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("Enter a 4 digit integer:");
String number = sc.nextLine();
String encryptedNumber = encrypt(number);
System.out.println("The decrypted number is:"+encryptedNumber);
System.out.println("The original number is:"+decrypt(encryptedNumber));
}
}
Retail price data for n = 60 hard disk drives were recently reported in a computer magazine. Three variables were recorded for each hard disk drive: y = Retail PRICE (measured in dollars) x1 = Microprocessor SPEED (measured in megahertz) (Values in sample range from 10 to 40) x2 = CHIP size (measured in computer processing units) (Values in sample range from 286 to 486) A first-order regression model was fit to the data. Part of the printout follows: __________.
Answer:
Explanation:
Base on the scenario been described in the question, We are 95% confident that the price of a single hard drive with 33 megahertz speed and 386 CPU falls between $3,943 and $4,987
Components of a product or system must be
1) Reliable
2) Flexible
3) Purposeful
4)Interchangeable
Answer:
The correct answer to the following question will be Option D (Interchangeable).
Explanation:
Interchangeability applies towards any portion, part as well as a unit that could be accompanied either by equivalent portion, component, and unit within a specified commodity or piece of technology or equipment.This would be the degree to which another object can be quickly replaced with such an equivalent object without re-calibration being required.The other three solutions are not situation-ally appropriate, so option D seems to be the right choice.
Write a program that has an input as a test score, and figures out a letter grade for that score, such as "A", "B", "C", etc. according to the scale: 90 or more - A 80 - 90 (excluding 90) - B 70 - 80 (excluding 80) - C 60 - 70 (excluding 70) - D else - F The program should print both a test score, and a corresponding letter grade. Test your program with different scores. Use a compound IF-ELSE IF statement to find a letter grade.
Answer:
The program in csharp for the given scenario is shown.
using System;
class ScoreGrade {
static void Main() {
//variables to store score and corresponding grade
double score;
char grade;
//user input taken for score
Console.Write("Enter the score: ");
score = Convert.ToInt32(Console.ReadLine());
//grade decided based on score
if(score>=90)
grade='A';
else if(score>=80 && score<90)
grade='B';
else if(score>=70 && score<80)
grade='C';
else if(score>=60 && score<70)
grade='D';
else
grade='F';
//score and grade displayed
Console.WriteLine("Score: "+score+ " Grade: "+grade);
}
}
OUTPUT1
Enter the score: 76
Score: 76 Grade: C
OUTPUT2
Enter the score: 56
Score: 56 Grade: F
Explanation:
1. The variables to hold the score and grade are declared as double and char respectively.
int score;
char grade;
2. The user is prompted to enter the score. The user input is not validated and the input is stored in the variable, score.
3. Using if-else-if statements, the grade is decided based on the value of the score.
if(score>=90)
grade='A';
else if(score>=80 && score<90)
grade='B';
else if(score>=70 && score<80)
grade='C';
else if(score>=60 && score<70)
grade='D';
else
grade='F';
4. The score and the corresponding grade are displayed.
5. The program can be tested for different values of score.
6. The output for two different scores and two grades is included.
7. The program is saved using ScoreGrade.cs. The .cs extension indicates a csharp program.
8. The whole code is written inside a class since csharp is a purely object-oriented language.
9. In csharp, user input is taken using Console.ReadLine() which reads a string.
10. This string is converted into an integer using Convert.ToInt32() method.
score = Convert.ToInt32(Console.ReadLine());
11. The output is displayed using Console.WriteLine() or Console.Write() methods; the first method inserts a line after displaying the message which is not done in the second method.
12. Since the variables are declared inside Main(), they are not declared static.
13. If the variables are declared outside Main() and at the class level, it is mandatory to declare them with keyword, static.
Kitchen Gadgets sells a line of high-quality kitchen utensils and gadgets. When customers place orders on the company’s Web site or through electronic data interchange (EDI), the system checks to see if the items are in stock, issues a status message to the customer, and generates a shipping order to the warehouse, which fills the order. When the order is shipped, the customer is billed. The system also produces various reports.
1. List four elements used in DFDs, draw the symbols, and explain how they are used.
2. Draw a context diagram for the order system.
3. Draw a diagram 0 DFD for the order system.
4. Explain the importance of leveling and balancing. Your boss, the IT director, wants you to explain FDDs, BPM, DFDs, and UML to a group of company managers and users who will serve on a systems development team for the new marketing system.
Answer:
Ahhhhh suckkkkkkkkkkk
Write a program that maintains a database containing data, such as name and birthday, about your friends and relatives. You should be able to enter, remove, modify, or search this data. Initially, you can assume that the names are unique. The program should be able to save the data in a fi le for use later. Design a class to represent the database and another class to represent the people. Use a binary search tree of people as a data member of the database class. You can enhance this problem by adding an operation that lists everyone who satisfi es a given criterion. For example, you could list people born in a given month. You should also be able to list everyone in the database.
Answer:
[tex]5909? \times \frac{?}{?} 10100010 {?}^{?} 00010.222 {?}^{2} [/tex]
How has the Aswan High Dem had an adverse effect on human health?
Answer:
How was the Aswan high dam had an adverse effect on human health? It created new ecosystems in which diseases such as malaria flourished. An environmental challenge facing the Great Man Made River is that pumping water near the coast. ... Water scarcity makes it impossible to grow enough food for the population.
Explanation:
Create a classRationalNumber(fractions, see problem 11.15 p.639) with the following capabilities:a) Create a constructor that prevents 0 on the denominator in a fraction, reduces (or simplifies) fractionsthat are not in reduced form (lowest terms), and avoids negative denominatorsb) Overload the addition, subtraction, multiplication, and division operators for this class.c) Overload the relationaland equality == operators for this class.Test all member functions and overloaded operators.
Answer:
See explaination
Explanation:
#include<iostream>
using namespace std;
class a
{
int i,n,d,sn,sd,cond;
public:
void getdata()
{
cout<<"Enter the numerator"<<endl;
cin>>n;
cout<<"Enter the denominator"<<endl;
cin>>d;
}
void operator+(a a1)
{
if(a1.d!=d)
{
sn=(a1.n*d)+(n*a1.d);
sd=(a1.d)*(d);
}
else
{
sn=a1.n+n;
sd=a1.d;
}
if(sn>sd)
{
cond=sd;
}
else if(sd>sn)
{
cond=sn;
}
}
void sum()
{
for(i=2;i<=cond;i++)
{
if(sn%i==0 && sd%i==0)
{
sn=sn/i;
sd=sd/i;
}
}
cout<<"Sum is "<<sn<<"/"<<sd<<endl;
}
a operator-(a a1)
{
a a3;
if(a1.d!=d)
{
a3.sn=(a1.n*d)-(n*a1.d);
a3.sd=(a1.d)*(d);
}
else
{
a3.sn=a1.n-n;
a3.sd=a1.d;
}
return a3;
}
void sub()
{
if(sn>sd)
{
cond=sd;
}
else if(sd>sn)
{
cond=sn;
}
for(i=2;i<=cond;i++)
{
if(sn%i==0 && sd%i==0)
{
sn=sn/i;
sd=sd/i;
}
}
cout<<"Subtraction is "<<sn<<"/"<<sd<<endl;
}
a operator /(a a1)
{
a a4;
a4.sn=a1.n*d;
a4.sd=a1.d*n;
return a4;
}
void div()
{
if(sn>sd)
{
cond=sd;
}
else if(sd>sn)
{
cond=sn;
}
else if(sn==sd)
{
sn=1;
sd=1;
}
for(i=2;i<=cond;i++)
{
if(sn%i==0 && sd%i==0)
{
sn=sn/i;
sd=sd/i;
}
}
cout<<"Division is "<<sn<<"/"<<sd<<endl;
}
a operator*(a a1)
{
a a5;
a5.sn=a1.n*n;
a5.sd=a1.d*d;
return a5;
}
void mul()
{
if(sn>sd)
{
cond=sd;
}
else if(sd>sn)
{
cond=sn;
}
for(i=2;i<=cond;i++)
{
if(sn%i==0 && sd%i==0)
{
sn=sn/i;
sd=sd/i;
}
}
cout<<"Multiplication - "<<sn<<"/"<<sd<<endl;
}
};
int main()
{
a a1,a2,a3,a4,a5,a6;
a1.getdata();
a2.getdata();
a2+(a1);
a2.sum();
a3=a2-(a1);
a3.sub();
a4=a2/(a1);
a4.div();
a5=a2*(a1);
a5.mul();
return 0;
}
customer seeks to buy a new computer for private use at home. The customer primarily needs the computer to use the Microsoft PowerPoint application for the purpose of practicing presentation skills. As a salesperson what size hard disc would you recommend and why?
Answer:
A 512 GB Solid State Drive (SSD) will be recommended
Explanation:
Recommended hard disk for the installation of Microsoft PowerPoint application is 3 GB and since the computer is a new one it will be best to buy a hard disc with enough room for expansion, performance speed, durability and reliability
Therefore, a 512 GB Solid State Drive (SSD) is recommended as the price difference is small compared to the spinning hard drive and also there is ample space to store PowerPoint training presentation items locally.
Dave owns a construction business and is in the process of buying a laptop. He is looking for a laptop with a hard drive that will likely continue to function if the computer is dropped. Which type of hard drive does he need?
Answer:
Solid state drive
Explanation:
The term solid-state drive is used for the electronic circuitry made entirely from semiconductors. This highlights the fact that the main storage form, in terms of a solid-state drive, is via semiconductors instead of a magnetic media for example a hard disk. In lieu of a more conventional hard drive, SSD is built to live inside the device. SSDs are usually more resistant to physical shock in comparison to the electro-mechanical drives and it functions quietly and has faster response time. Therefore, SSD will be best suitable for the Dave.
(34+65+53+25+74+26+41+74+86+24+875+4+23+5432+453+6+42+43+21)°
For this problem, you will write a function standard_deviation that takes a list whose elements are numbers (they may be floats or ints), and returns their standard deviation, a single number. You may call the variance method defined above (which makes this problem easy), and you may use sqrt from the math library, which we have already imported for you. Passing an empty list to standard_deviation should result in a ZeroDivisionError exception being raised, although you should not have to explicitly raise it yourself.
Answer:
import math def standard_deviation(aList): sum = 0 for x in aList: sum += x mean = sum / float(len(aList)) sumDe = 0 for x in aList: sumDe += (x - mean) * (x - mean) variance = sumDe / float(len(aList)) SD = math.sqrt(variance) return SD print(standard_deviation([3,6, 7, 9, 12, 17]))Explanation:
The solution code is written in Python 3.
Firstly, we need to import math module (Line 1).
Next, create a function standard_deviation that takes one input parameter, which is a list (Line 3). In the function, calculate the mean for the value in the input list (Line 4-8). Next, use the mean to calculate the variance (Line 10-15). Next, use sqrt method from math module to get the square root of variance and this will result in standard deviation (Line 16). At last, return the standard deviation (Line 18).
We can test the function using a sample list (Line 20) and we shall get 4.509249752822894
If we pass an empty list, a ZeroDivisionError exception will be raised.
Who is your favorite smite god in Hi-Rez’s “Smite”
Answer:
Variety
Explanation:
Let U = {b1, b2, , bn} with n ≥ 3. Interpret the following algorithm in the context of urn problems. for i is in {1, 2, , n} do for j is in {i + 1, i + 2, , n} do for k is in {j + 1, j + 2, ..., n} do print bi, bj, bk How many lines does it print? It prints all the possible ways to draw three balls in sequence, without replacement. It prints P(n, 3) lines. It prints all the possible ways to draw an unordered set of three balls, without replacement. It prints P(n, 3) lines. It prints all the possible ways to draw three balls in sequence, with replacement. It prints P(n, 3) lines. It prints all the possible ways to draw an unordered set of three balls, without replacement. It prints C(n, 3) lines. It prints all the possible ways to draw three balls in sequence, with replacement. It prints C(n, 3) lines.
Answer:
Check the explanation
Explanation:
Kindly check the attached image for the first step
Note that the -print" statement executes n(n — I)(n — 2) times and the index values for i, j, and k can never be the same.
Therefore, the algorithm prints out all the possible ways to draw three balls in sequence, without replacement.
Now we need to determine the number of lines this the algorithm print. In this case, we are selecting three different balls randomly from a set of n balls. So, this involves permutation.
Therefore, the algorithm prints the total
P(n, 3)
lines.
customer seeks to buy a new computer for private use at home. The customer primarily needs the computer to use the Microsoft PowerPoint application for the purpose of practicing presentation skills. As a salesperson what size hard disc would you recommend and why?
Explanation:
The most reliable hard drives are those whose most common size is 3.5 inches, their advantages are their storage capacity and their speed and a disadvantage is that they usually make more noise.
For greater speed, it is ideal to opt for two smaller hard disks, since large disks are slower, but are partitioned so that there are no problems with file loss.
For a person who needs to use content creation programs, it is ideal to opt for a hard drive that has reliability.
To encrypt messages I propose the formula C = (3P + 1) mod 27, where P is the "plain text" (the original letter value) and C is the "cipher text" (the encrypted letter value). For example, if P = 2 (the letter 'c' ), C would be 7 (the letter 'h') since (3(2) + 1) mod 27 = 7. There is a problem though: When I send the message 'c' to my friend, encrypted as 'h', they don't know whether the original message was 'c' or another letter that also encrypts to 'h'. What other letter(s) would also encrypt to 'h' besides 'c' in this system?
Answer:
C = (3P+1) % 27
so when P will be max 26,when P is 26 the (3P+1) = 79. And 79/27 = 2 so let's give name n = 2.
Now doing reverse process
We get ,
P = ((27*n)+C-1)/3
Where n can be 0,1,2
So substituting value of n one by one and the C=7(corresponding index of h)
For n= 0,we get P=2, corresponding char is 'c'
For n=1,we get P=11, corresponding char is 'l'
For n=2,we get P= 20, corresponding cahr is 'u'.
So beside 'c',the system will generate 'h' for 'l' and 'u' also.
