List the name and purpose of twenty (20) different C++ commands.

Answers

Answer 1

Answer:

Drivers and help a new program to run


Related Questions

PLEASE HURRY!!!
Look at the image below!

Answers

The first, third, and last are correct.

Write a program to simulate a simple calculator. In your program ask the user to enter an operation selected from the menu, ask for two operands. Calculate the result and display it on the screen. Here is a sample run

Answers

Answer:

Written in Python:

opcode = input("Enter operator: +,-,*,/")

operand1 = float(input("Operand 1: "))

operand2 = float(input("Operand 2: "))

if opcode == "+":

    print(operand1 + operand2)

elif opcode == "-":

    print(operand1 - operand2)

elif opcode == "*":

    print(operand1 * operand2)

elif opcode == "/":

    print(operand1 / operand2)

else:

    print("Invalid Operator")

Explanation:

This prompts user for operator

opcode = input("Enter operator: +,-,*,/")

The next two lines prompt user for two operands

operand1 = float(input("Operand 1: "))

operand2 = float(input("Operand 2: "))

This performs + operation if operator is +

if opcode == "+":

    print(operand1 + operand2)

This performs - operation if operator is -

elif opcode == "-":

    print(operand1 - operand2)

This performs * operation if operator is *

elif opcode == "*":

    print(operand1 * operand2)

This performs / operation if operator is /

elif opcode == "/":

    print(operand1 / operand2)

This displays invailid operator if input operator is not +,-,* or /

else:

    print("Invalid Operator")

11000011 00010011 00111010 00011101 / 00010010
In this example of IP address, determine: class, hostID, netID.

Answers

Answer:

Just imagine asalt rifle XD it be firing salts.....need some salt? Ask the asalt rifle.

Explanation:

Which data type is -7?
O string
O int
O float
O single

Answers

Answer:

It's an int... Choose B

Answer:

int

Explanation:

correct on edge

Which of the following are labels used to identify illustrations such as tables, charts and figures in a document?
O Headers
O Footers
O Captions
O Citations

Answers

There are data which are given charts, tables and illustrated by the help of some labelling. This labelling helps us to identify the data and makes us understand what the data says.

This labelled data has to be given some name and thus in order to represent the figures in a document. This term caption is given to those data sets in the form of tables and illustrations.

Hence the option C is correct,

Learn more about the labels used to identify the tables, charts and figures in a document.

brainly.in/question/11644668.

T/F 2.In most computers, the operating system is stored on a compact disc.

Answers

Answer:

False

Explanation:

Either a Hard Drive or a SSD would be used to store the OS

A mutex lock is released immediately after entering a critical section. Group of answer choices True False

Answers

Answer:

False

Explanation:

The mutex lock should be purchased at the time when it would be entered in the critical section and it is released when it leaves the critical section

Also for improving out the critical resources synchronization among various processes, the mutex locks would be implemented

Therefore the given statement is false

Hence, the same is to be considered

Answer:

False

Explanation:

[tex] \: [/tex]

[tex] \: [/tex]

Which are valid variable names? Select 2 options.

cost$

firstNumber

$cost

1stNumber

first_number

Answers

Answer:  

firstNumber

first_number

Explanation: i did it ;)

Answer: firstNumber

Explanation: got it right on edgen

What is the output password=sdf345

Answers

Answer:what do you mean

Explanation:

Answer:

False

Explanation:

If you put it in python your answer would be false

Suppose a disk drive has the following characteristics: Six surfaces 16,383 tracks per surface 63 sectors per track 512 bytes/sector Track-to-track seek time of 8.5ms Rotational speed of 7,200rpm a) What is the capacity of the drive

Answers

Answer:

The answer is "2.95 GB"

Explanation:

Given value:

Surfaces = 6

The tracks per surface =16,383

The sectors per track = 63

bytes/sector = 512

Track-to-track seek time = 8.5ms

The Rotational speed = 7,200rpm

[tex]\text{Drive capacity= surface} \times \text{tracks per surface} \times \text{sectors per track} \times \frac{bytes}{sector}[/tex]

                      [tex]= 6 \times 16383 \times 63 \times 512 \\\\= 3170700288 \ B\\\\ = 3023.81543 \ MB \\\\= 2.95294 \ GB\\[/tex]

The drive capacity is 2.95 GB

Write a Python function to get the first half of a specified string of even length. Suppose the input string is "Python" ,after calling the function, we should see the output "Pyt"

Answers

In python:

def get_even(txt):

   return txt[0:int((len(txt) / 2))]

We can test our function with the following code:

print(get_even("Python")) This returns "Pyt" in the console.

I hope this helps!

Answer:

c

Explanation:

Write a method called printIndexed that accepts a String as itsparameter and prints the String's characters in order followed bytheir indexes in reverse order. For example, the call ofprintIndexed("ZELDA"); should print Z4E3L2D1A0 to the console.

Answers

Answer:

def printIndexed(s):

   for i in range(len(s)):

       print(s[i] + str(len(s) - 1 - i), end="")

       

   

printIndexed("ZELDA")

Explanation:

*The code is in Python.

Create a method named printIndexed that takes one parameter, s

Create a for loop that iterates the length of the s times

Inside the loop, print the characters from starting and indexes from the end

Note that in order the print the current character, you need to use indexing. s[i] refers to the current character of the string (the value of the i starts from 0 and goes until length of the s - 1). Also, to print the indexes from the end, you need to subtract the i from the length of the s - 1

For example, in the first iteration, i = 0:

s[i] = s[0] = Z

len(s) - 1 - i = 5 - 1 - 0 = 4

Alina needs to e-mail an Excel spreadsheet to a colleague. What is the best method to send the file if she does not want the colleague to easily make changes to the original file?

selecting Send Using E-mail and sending a link
selecting Send Using E-mail and sending as a PDF
selecting Send Using E-mail and sending as an attachment
selecting Send Using E-mail and sending as a published document

Answers

Answer:

B

Explanation:

what are the commonly used computer categories.

Answers

Answer:

PCs (Personal Computers) with Microsoft Windows

Explanation:

i used google. hope this helped!!!

Write a class named TestScores. The class constructor should accept an array of test scores as its argument. The class should have a method that returns the average of the test scores. If any test score in the array is negative or greater than 100, the class should throw an IllegalArgumentException. Demonstrate the class in a program.

Answers

import java.util.Arrays;

public class TestScores {

   public static float getAverage(float arr[]){

       float total = 0;

       for (float x : arr){

           if (x < 0 || x > 100){

               throw new IllegalArgumentException();

           }

           else{

               total += x;

           }

           

       }

       return (total / arr.length);

   }

   

   public static void main(String [] args){

       float arr[] = {1,100,0,43,-1};

       System.out.println(getAverage(arr));

   }

}

In the main method we test our getAverage method with the arr array. You can replace the values in the arr array and test your own values. I hope this helps!

The code example of the implementation of the TestScores class in Java is shown below:

What is the class?

java

import java.util.Arrays;

public class TestScores {

   private int[] scores;

   public TestScores(int[] scores) {

       this.scores = scores;

   }

   public double getAverage() {

       int sum = 0;

       for (int score : scores) {

           if (score < 0 || score > 100) {

               throw new IllegalArgumentException("Invalid test score: " + score);

           }

           sum += score;

       }

       return (double) sum / scores.length;

   }

   public static void main(String[] args) {

       int[] scores = {85, 90, 92, 88, 95};

       TestScores testScores = new TestScores(scores);

       try {

           double average = testScores.getAverage();

           System.out.println("Average test score: " + average);

       } catch (IllegalArgumentException e) {

           System.out.println("Error: " + e.getMessage());

       }

   }

}

Read more about  class  here:

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#SPJ2

Suppose you discover that you have a directory called bin2, which includes a bunch of useful programs. You want to move those programs into your bin directory, and then delete bin2. What command(s) will you give

Answers

Answer:

The MV command to move the bin2 directory to the bin directory.

Explanation:

Linux operating system uses a hierarchical arrangement of directories to organise information in its system.

It is an open source operating system with various built-in commands and other commands which can be made by a programmer.

The MV command takes a file or directory from a current directory and a destination directory.

PEASE ANSWER QUICKLY

What is the value of the variable moneyDue after these lines of code are executed? >>>numSodas = 2 >>>costSodas = 1.50 >>>moneyDue = numSodas * costSodas

The value of moneyDue is ____.

Answers

90
I calculated the sodas

Answer:

3.0

Explanation:

I input 90 and it was not correct, the answer is 3.0 (correct on Edg 2021) :D

Which three actions can be done to panels to customize a user's Photoshop space?
Report them
Show them
Cast them
Separate them
Nest them

Answers

Answer:

Show them

Separate them

Nest them

Explanation:

In Photoshop space, the three actions that can be done to panels to customize a user's space is to show them, make them visible then nest them, and separate them.

Which method accepts a function that combines all the elements in the array and then returns the resulting value?
a. filter()
b. reduce()
c. map()
d. forEach()

Answers

Answer:

The method that accepts a function that combines all the elements in an array and then returns the resulting values is map() method.

Explanation:

map()  method creates a new array with the results of calling a provided  function for every array element. map() element calls function for each array element to compute value.

Which is an algorithmic form of a procedure?
A.
function calc_area
B.
area=length*breadth
C.
call function calc_area
D.
return area to the main function
E.
end function calc_area

Answers

Answer:

b

Explanation:

im doing the test right now

Answer:

B is correct!

Explanation:

Which finger types the space bar?

Answers

Answer:

Thumbs

Explanation:

What type of cipher takes one character and replaces it with one character, working one character at a time

Answers

Answer: An algorithm

Explanation: ​An asymmetric encryption key that does have to be protected. ​An algorithm that takes one character and replaces it with one character.

Computer programmers are responsible for writing code that tells computers commands to follow.

True
False

Answers

True is the correct answer.

Answer:

True

Explanation:

the answer is true

Write a function, maxRadius, to find the index of the planet with the largest radius in the array. The function should: Be named maxR

Answers

Answer:

The following c code has the maxR function as the calculator of planet radius.

Code:

#include<iostream>

#include<string>

using namespace std;

//if is not asked to import a math library, it can be used the following Pi value.

const double PI = 3.14;

class Planet

{

private:

 string planet;

 double r;

public:

   Planet ()

 {

   this->planet = "";

   this->r = 0.0;

 }

 Planet (string name, double r)

 {

   this->planet = name;

   this->r = r;

 }

 string collectName () const

 {

   return this->planet;

 }

 double collectR () const

 {

   return this->r;

 }

 double collectVolume () const

 {

   return 4 * r * r * r * PI / 3;

 }

};

int

maxR (Planet * planets, int s)

{

 double maxR = 0;

 int index_of_max_r = -1;

 for (int index = 0; index < s; index++)

   {

     if (planets[index].collectR () > maxR)

{

  maxR = planets[index].collectR ();

  index_of_max_r = index;

}

   }

 return index_of_max_r;

}

int

main ()

{

 Planet planets[5];

 planets[0] = Planet ("On A Cob Planet", 1234);

 planets[1] = Planet ("Bird World", 4321);

 int idx = maxR (planets, 2);

 cout << planets[idx].collectName () << endl;

 cout << planets[idx].collectR () << endl;

 cout << planets[idx].collectVolume () << endl;

}

6.24 LAB: Exact change - functions Write a program with total change amount as an integer input that outputs the change using the fewest coins, one coin type per line. The coin types are dollars, quarters, dimes, nickels, and pennies. Use singular and plural coin names as appropriate, like 1 penny vs. 2 pennies. Ex: If the input is:

Answers

Answer:

Written in Python

money = int(input("Enter Amount Here:  "))

dollar = int(money/100)

money = money % 100

quarter = int(money/25)

money = money % 25

dime = int(money/10)

money = money % 10

nickel = int(money/5)

penny = money % 5

if dollar >= 1:

     if dollar == 1:

           print(str(dollar)+" dollar")

     else:

           print(str(dollar)+" dollars")

if quarter >= 1:

     if quarter == 1:

           print(str(quarter)+" quarter")

     else:

           print(str(quarter)+" quarters")

if dime >= 1:

     if dime == 1:

           print(str(dime)+" dime")

     else:

           print(str(dime)+" dimes")

if nickel >= 1:

     if nickel == 1:

           print(str(nickel)+" nickel")

     else:

           print(str(nickel)+" nickels")

if penny >= 1:

     if penny == 1:

           print(str(penny)+" penny")

     else:

           print(str(penny)+" pennies")

Explanation:

I've added the source code as an attachment where I used comments to explain some lines

Functions of a microcomputer

Answers

Answer:

Many functions can have less amount of storage can have a small CPU could have smaller mother board units and also have different types of programming

Write a Java program that does the following: Prompts the user to input five decimal numbers Prints the five decimal numbers Converts each decimal number to the nearest integer Adds the five integers Prints the sum and average of the five integers

Answers

import java.util.Scanner;

public class Main {

 public static void main(String[] args) {

   Scanner myObj = new Scanner(System.in);

   float arr[] = {0,1,2,3,4};

   String txt[] = {"first", "second", "third", "fourth", "fifth"};

   for (int i=0;i<arr.length; i++){

     System.out.println("Enter the " + txt[i] + " number.");

     float num1 = myObj.nextFloat();

     arr[i] = num1;

   }

   for (int w = 0; w< arr.length; w++){

     System.out.println("The " + txt[w] + " number is " + arr[w]);

     arr[w] = Math.round(arr[w]);

   }

   System.out.println(" ");

   for (int w = 0; w < arr.length; w++){

     System.out.println("The " + txt[w] + " number is " + arr[w]);

   }

   System.out.println(" ");

   float total = 0;

   for (float w : arr){

     total += w;

   }

   System.out.println("The sum of the numbers is " + total + " and the average is " + (total / 5));

 }

}

I hope this helps!

What is a ribbon or ribbions in Microsoft Word?

Answers

A set of toolbars at the top of the window. Design to help you quickly find the commands.
A set of toolbar at the top of the window.

True/False Using a RADIUS server with RRAS means that the local server database will be used to authenticate users for accessing the local network

Answers

Answer: True.

Explanation:

A RADIUS Client ( Radius Authentication Dial or Network Access Server) are networking device which works like a (VPN concentrator, router, or a switch) they are used to authenticate users. A RADIUS Server runs as a background process that is used on a UNIX, and Windows server. It mains purpose is to maintain user profiles on a central database.

Give a recursive algorithm that takes as input two non-negative integers x and y and returns the sum of x and y. The only arithmetic operations your algorithm can perform are Increment(x) which returns x 1 and Decrement(x) which returns x-1. Your algorithm should have no loops.

Answers

Answer:

Following are the code to this question:

Cal_sum(x,y)//defining a recursive method Cal_sum that takes two variable as a parameter

{

if(x==0)// defining If that checks x equal to 0

return y; //return y value

x- 1;//decreasing x value  

y+1;//increasing y value

return Cal_sum(x,y)// calling method recursively

}

Explanation:

In the above-given code, a recursive method "Cal_sum" is declared, that accepts two-variable "x and y" in its parameter, and use if block to checks x is equal to 0 and return the value y variable, and, in the next step, it decreases the value of " x" by "1" and increment the value of y by "1", and call the method "Cal_sum" recursively.

The recursive program which calls itself in a function is used to return the value of y for a given x, y value in the program. The code written in python 3 goes thus :

def calc_sum (x,y) :

#initializes a function named calc_sum which takes in two arguments

if x ==0 :

#checks of the value of x is equal to 0

return y

#it returns y if x == 0

else :

#otherwise

x = x - 1

# decrease the value of x by 1

y = y + 1

#increase the value of y by 1

return calc_sum(x,y)

# calls the function recursively until x ==0

A sample run of the program is given below

print(calc_sum(4, 5 ))

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