In the following scenario, which is the least
important criteria in evaluating the technological
device?
A college student needs a laptop that can be used
while commuting on the train and sitting in lecture.
Connectivity
Size
Speed
Storage

Answer:

what

Explanation:

Answer:

a) true

Explanation:

In Computer programming, integrity constraints can be defined as a set of standard rules that ensures quality information and database are maintained.

Basically, there are four (4) types of integrity constraints and these are;

1. Key constraints.

2. Domain constraints.

3. Entity integrity constraints.

4. Referential integrity constraints.

Referential integrity is a property of data which states that each foreign key value must match a primary key value in another relation or the foreign key value must be null.

For instance, when a foreign key in Table A points to the primary key of Table B, according to the referential integrity constraints, all the value of the foreign key in Table A must be null or match the primary key in Table B.

Hence, the referential Integrity constraints ensures that the relationship between the data in a table is consistent and valid.

Hence, referential integrity constraints are concerned with checking INSERT and UPDATE operations that affect the parent child relationships.

This ultimately implies that, referential Integrity are rules used in database management systems (DBMS) to ensure relationships between tables when records are changed is VALID (INSERT and UPDATE).

In a nutshell, it always ensures a primary key must have a matching foreign key or it becomes null.

In this exercise we have to analyze the integrity that some constraints have, so the alternative that best matches is;

True

In Computer plan out, uprightness constraints maybe delineate as a set of standard rules that guarantee kind information and collection of data happen uphold. Basically, skilled are four (4) types of completeness restraint and these exist;

Referential honor exist a property of information in visible form that states that each irrelevant key value must equal a basic key profit in another family connection or the from another country key profit must be ineffectual.

For instance, when a experience transfer data from one computer system to another Table A points to the basic key of Table B, in accordance with the referential purity restraint, all the worth of the from another country transfer data from one computer system to another Table A must exist valueless or counterpart the basic transfer data from one computer system to another Table B.

Hence, the referential Integrity restraint make secure that the relationship middle from two points the information in visible form in a table exist compatible and right. Hence, referential integrity restraint exist concerned with restrain INSERT and UPDATE movement that influence the parent very young person connection.

This eventually indicate that, referential Integrity are rules secondhand fashionable collection of data management structure (DBMS) to make secure friendship middle from two points tables when records are transformed exist VALID (INSERT and UPDATE). In a nutshell, it forever ensures a basic key must bear a equal foreign key or it enhance ineffectual.

See more about integrity at brainly.com/question/14406733

Answer:

def nametag(first_name, last_name):

return("{} {[0]}.".format(first_name, last_name))

print(nametag("Jane", "Smith"))

# Should display "Jane S."

print(nametag("Francesco", "Rinaldi"))

# Should display "Francesco R."

print(nametag("Jean-Luc", "Grand-Pierre"))

# Should display "Jean-Luc G."

Explanation:

First you must think about that the question ask about the first letter for last_name, remember [0] is the first letter not [1], the other part is about format function and its order

The format method to return first_name and the first initial of last_name followed by a period in python is represented as follows:

def nametag(first_name, last_name):

  return '{} {}.'.format(first_name, last_name[0])

print(nametag("Jane", "Smith"))

print(nametag("Francesco", "Rinaldi"))

print(nametag("Jean-Luc", "Grand-Pierre"))

A function named nametag is declared with the arguments first_name and last_name.

Then it returns the first name and the initial of the last_name using the .format method.

Then we call the function using the print statement with the arguments.

learn more on python code; https://brainly.com/question/17184408?referrer=searchResults

Answer:

No, hackers can steal information from cookies. This many times depend on the type of cookies.

Cookies, by general definition, are programs embedded onto browsers which collect non-invasive information about our activities such so that it can adapt to our needs.

The type of information that a cookie collects depends on what type of cookie it is.

Session Cookies: These types of cookies only collect information about the movement of the user on the website such as pages visited, products that were examined (for e-commerce websites) and products/services that the user put in their cart.

These type of cookies are temporary and are deleted as soon as the browser is shut down.

Persistent Cookies:

These do the same thing that the Session cookies do only that they are more permanent and are stored in a text file even after the browser and the computer has been shut down.

It is these types of cookies that pose a threat. These type of cookies many store codes and passwords and log-in details which may be exploited by a hacker.

Cheers!

Answer:

No, it is not the final step in decision-making model. It is rather the penultimate stage of the model of decision making.

Explanation:

The final step of the decision-making model is reviewing your decision and its consequences. The decision-making model has total of 7 steps. One should follow these all the steps to make it error free and more efficient then it rather would have been when the decision was made without following it.

The very first step of this model is to identify the decision. And it is one of the most important steps to be followed to avoid any error.  

Answer:

D) Boolean

Explanation:

Int, Float, Long and Boolean are commonly used data types in programming languages. Of these data types, the Boolean data type, named after George Boole, does not represent a numerical value. Rather it has one of two possible values, True and False. These values represent the two truth values of logic and Boolean algebra.

The Boolean data type is basically associated with conditional statements which specifies different actions to be taken depending on whether the Boolean condition evaluates to true or false. Therefore it influences the control flow of a program.

Complete Question:

Write a program that reads a person's first and last names, separated by a space. Then the program outputs last name, comma, first name. End with newline.  

Example output if the input is: Maya Jones

Jones, Maya

In C++

Answer:

The program written in C++ is as follows

#include<iostream>

using namespace std;

int main(){

string lname, fname;

cout<<"First name: ";

cin>>fname;

cout<<"Last name: ";

cin>>lname;

cout<<lname<<", "<<fname;

return 0;

}

Explanation:

This line declares lname, fname as string to get the user's last name and first name, respectively

string lname, fname;

This line prompts the user for first name

cout<<"First name: ";

This line gets the user first name

cin>>fname;

This line prompts the user for last name

cout<<"Last name: ";

This line gets the user last name

cin>>lname;

This line prints the desired output

cout<<lname<<", "<<fname;

The program in Python is

person_name = input("Enter your first name and last name separated

                           by space: ")

split_names = person_name.split( )

first_name = split_names[0]

last_name = split_names[1]

print(last_name + ", " + first_name)

The first line of the program requests the first and last names as a single string, separated by a space.

The next line splits the name into first and last names

Finally, the print statement displays the names reversed, but separated with a comma

See another example of a Python program here: https://brainly.com/question/21861447

Answer:

they complained that it threatened the Mutually assured destruction (MAD) approach.

Explanation:

For example, the Strategic Defense Initiative (SDI) allowed for a swift response if the United Nations came under attack, by deploying ballistic strategic nuclear weapons.

However, the Mutually assured destruction (MAD) approach demanded that there should be restraint in using nuclear weapons, especially when there is a threat of another Nation.

Answer:

Answered below

Explanation:

In order to not discourage the user, error messages must be implemented in a user-friendly way with the use of strategies which ensure coordination, consistency and simplicity.

Error messages should be short, direct and communicate clearly, the right amount of information to a user. These messages should be sorted into categories which represent different kinds of errors. These specific categories should have a brief alphanumeric code that can be easily shared with a customer support personnel for solution and also to help users search for solutions themselves, on the internet.

Answer:

Here is for loop that sets sumExtra to the total extra credit received. I am writing a program in C++

for(i = 0; i <= testGrades.size() - 1; i++){

  if(testGrades.at(i) > 100){

      sumExtra = sumExtra + (testGrades.at(i) - 100);   } }

Explanation:

The complete program is:

#include <iostream> //to use input output functions

#include <vector> //to use vectors

using namespace std; //to identify objects like cin cout

int main() { //start of main function

const int NUM_VALS = 4; // sets the value of NUM_VALS as a constant to 4

vector<int> testGrades(NUM_VALS); // initialize the vector of int (integer) type

int i = 0; // i is initialzed to 0

int sumExtra = 0; //stores the total extra credit

testGrades.at(0) = 101; //sets 101 at first position in vector

testGrades.at(1) = 83; //sets value 83 at second position

testGrades.at(2) = 107; //sets value 107 at third position

testGrades.at(3) = 90; //sets value 90 at fourth position

for(i = 0; i <= testGrades.size() -1; i++){ //loop iterate through each value of in a vector testGrades

  if(testGrades.at(i) > 100){ // if the value in a vector exceeds 100

      sumExtra = sumExtra + (testGrades.at(i) - 100);   } } //computes total extra credit

cout << "sumExtra: " << sumExtra << endl;} //displays the value of computed total extra credit in output

The loop works as follows:

In the first iteration the value of vector testGrades at(i) is at(0) = 101.

if statement checks if this value/element is greater than 100. This is true as 101 > 100. So sumExtra = sumExtra + (testGrades.at(i) - 100); statement is executed in which 100 is subtracted from that element and the result is added to the sumExtra. sumExtra is initialized to 0 so the value of sumExtra becomes: 0+ 101 - 100= 1 So the value of sumExtra = 1

In the second iteration the value of i = 1 and it is positioned at 2nd value of vector testGrades i.e. 83. Then if statement checks if this value/element is greater than 100. This is false as 83 < 100. So the value of sumExtra = 1

In the third iteration the value of i = 2 and it is positioned at 3rd value of vector testGrades i.e. 107. Then if statement checks if this value/element is greater than 100. This is true as 107 > 100.

sumExtra = sumExtra + (testGrades.at(i) - 100); statement is executed in which 100 is subtracted from that element and the result is added to the sumExtra

sumExtra is 1 so the value of sumExtra becomes: 1+ 107 - 100= 8 So the value of sumExtra = 8

In fourth iteration  the value of i = 3 and it is positioned at 4th value of testGrades vector i.e. 90. Then the if statement checks if this element is greater than 100. This is false as 90 < 100. So the value of sumExtra remains 8.  

Finally the loop breaks as the value of i becomes 4. So the output is 8.

Answer:

sumExtra = 0;

   for (i = 0; i < NUM_VALS; ++i) {

     if (testGrades[i] >= 101) {

     sumExtra += (testGrades[i] - 100);

     }

   }

   cout << "sumExtra: " << sumExtra << endl;

Explanation:

Answer:

Because the value derived from harmonic mean reflects the credible result of search engine

Explanation:

Given that the value of arithmetic mean tends to be closer to the highest value between Precision and Recall, while the value of the harmonic mean, is the lowest value between Precision and Recall, in a situation where all documents relevant to a query are returned, where R = 1 and P is closer to 0, the arithmetic mean will be greater than 0.5 and will not reflects the credible result of search engine

However, if the harmonic mean is utilized, the value will be closer to the low Precision value, hence it closely reflects the credible result of search engine

Explanations

__________________________________________________________

1: Education, entertainment, notifications, etc.

2: The internet is a fast, easy and effeciant way to communicate. other reasons may be for banking purposes, online grocery shopping, etc.

3 & 4: Self answerable questions.

5: Common communication nowadays is texting, phone calls, etc. It's easier to press a button or two to send out information than what it used to be. For example, it often took days, weeks, and even months for messages to be sent from one location to a far-flung position.

6: ( MY OPINION ) I feel like the internet is (in a lot of ways) bad for the  younger generation and the ( soon to come ). There are alot of online predators, blogs/websites that have inappropriate content. It's quite easy for a teen to just go to a po**ographic site nowadays, type in his/her email and just simply watch it like that. Some of them don't require sign up to view videos, images, gifs. And about the online predator situation, a lot of teenagers (girls AND boys) often feel pressured into sending images of themselves now.

__________________________________________________________

e. /Users/me/Documents/file.txt

The Python statement is an illustration of file manipulations

The output from the Python statement is: (e) /Users/me/Documents/file.txt

From the given statement, the first line imports the Python os module.

While the second line gets the current working file path.

So, the statement os.path.join(cwd, 'Documents/file.txt') means that:

The current working file path is Documents/file.txt

Hence, the output from the Python statement is: (e) /Users/me/Documents/file.txt

Read more about file manipulations at:

https://brainly.com/question/19386916

Answer:

IoTs

Explanation:

Answer:

I HOPE IT WORK

Explanation:

An advantage of using the database approach to processing is that it facilitates consistency. True. Users never interact with a database, directly; database interaction is always through the DBMS

Answer:

Assuming an upstander is someone that opposes cyberbullying:

(1) Call them out

(2) Report the behavior to proper moderation authority

(3) Tell the person to block messages from the cyberbully

I don't really know what else you want from this.

Cheers.

Answer:

Here is the Python program:

def measure_string(myStr):  #function that takes a string as parameter

   if myStr == '':  #if the string is empty (base case)

       return 0  #return 0

   else:  #if string is not empty

       return 1 + measure_string(myStr[0:-1])  #calls function recursively to find the length of the string (recursive case)

#in order to check the working of the above function the following statement is used        

print(measure_string("13 characters")) //calls function and passes the string to it and print the output on the screen        

Explanation:

The function works as following:

Suppose the string is 13 characters

myStr = "13 characters"

if myStr == '': this is the base case and this does not evaluate to true because myStr is not empty. This is basically the alternate of

if len(myStr) == 0: but we are not supposed to use len function here so we use if myStr == '' instead.

So the program control moves to the else part

return 1 + measure_string(myStr[0:-1])  this statement is a recursive call to the function measure_string.

myStr[0:-1] in the statement is a slice list that starts from the first character of the myStr string (at 0 index) to the last character of the string (-1 index)

This statement can also be written as:

return 1 + measure_string(myStr[1:])

or

return 1 + measure_string(myStr[:-1])  This statement start from 1st character and ends at last character

This statement keeps calling measure_string until the myStr is empty. The method gets each character using a slice and maintains a count by adding 1 each time this statement is returned.The function breaks string into its first character [0:] and all the rest characters [:-1]. and recursively counts the number of character occurrences and add 1. So there are 13 characters in the example string. So the output is:

13

Answer:

Here is the copy assignment operator for CarCounter:

CarCounter& CarCounter::operator=(const CarCounter& objToCopy) {

carCount = objToCopy.carCount;

return *this;  }

The syntax for copy assignment operator is:

ClassName& ClassName :: operator= ( ClassName& object_name)

In the above chunk of code class name Is CarCounter and object name is objToCopy.

Assignment operator = is called which assigns objToCopy.carCount to the new objects's carCount.

This operator basically is called when an object which is already initialized is assigned a new value from another current object.

Then return *this returns the reference to the calling object

Explanation:

The complete program is:

#include <iostream>  //to use input output functions

using namespace std;   //to access objects like cin cout

class CarCounter {  //class name

public:  // public member functions of class CarCounter

CarCounter();  //constructor of CarCounter

CarCounter& operator=(const CarCounter& objToCopy);  //copy assignment operator for CarCounter

void SetCarCount(const int setVal) {  //mutator method to set the car count value

carCount = setVal;  } //set carCount so setVal

int GetCarCount() const {  //accessor method to get carCount

return carCount;  }  

private:  //private data member of class

int carCount;  };    // private data field of CarCounter

CarCounter::CarCounter() {  //constructor

carCount = 0;  //intializes the value of carCount in constructor

return; }  

// FIXME write copy assignment operator  

CarCounter& CarCounter::operator=(const CarCounter& objToCopy){

/* copy assignment operator for CarCounter that assigns objToCopy.carCount to the new objects's carCount, then returns *this */

carCount = objToCopy.carCount;

return *this;}  

int main() {  //start of main() function

CarCounter frontParkingLot;  // creates CarCounter object

CarCounter backParkingLot;   // creates CarCounter object

frontParkingLot.SetCarCount(12);  // calls SetCarCount method using object frontParkingLot to set the value of carCount to 12

backParkingLot = frontParkingLot;  //assigns value of frontParkingLot to backParkingLot

cout << "Cars counted: " << backParkingLot.GetCarCount();  //calls accessor GetCarCount method to get the value of carCount and display it in output

return 0;  }

The output of this program is:

Cars counted = 12

Answer:

362880

Explanation:

In black and white images each pixel is 1 bit. You need to first find the total number of pixels, to do this you multiply the width and length of the picture (720x504) and you will get 362880. From there you would multiply the amount of pixels by how many bits each pixel is. In this case, since its black and white you multiply it by 1, which is 362880.

Answer:

Control + c

Explanation:

If you click and drag over text to highlight it and press on the control or command key (CTRL) and the "C" key, it will copy the text. When you want to paste it, you press control or command key (CRTL) and key "V" at the same time.

Answer:

1) communication

  entertainment

  sharing information and news

2) helps to easily get access to any sort of information

   we can easily come to know the recent happenings in the world

   helps to communicate with people living in other countries

   helps in earning money through online jobs

3) wiki(wikipedia) whenever needed

4) google chrome

5) yes.

   sorry i don know what to say

6) i think internet has both good and bad effects on younger generations.its helping them with their work but also kind of misleading them too.

Explanation:

Answer:

The correct option is A True

Explanation:

Arrays are implemented to store sevaral variables of the same type as a single array object in java for example. The arrays therefore acts as a container that can store several variables of the same type hence preventing the need to declare those variables seperately thus giving more code efficiency and better storage space management.

Answer: Having the ability to change the source code to fit your needs

Explanation:

Answer:

HTML, CSS, JavaScript, python, SQL

Explanation:

To create a web page for her travel adventures Dani has to use HTML and CSS to design the page's layout. A beautiful simple design such as one which shows photos of her on her travel destinations, and a paragraph for her to write a little story on her travels would do.

Dani needs JavaScript to animate the photos she's going to post on the page. Dani also should use python to build the backend of her page so she can write codes to save and access her documented adventures from the database. She should use a database language like SQL to save all of her adventures so she can view them at a later time for the memories.

Answer:

Dani should use HTML

Explanation:

Answer:

Here are the programs. I am writing C++ and Python programs:

a)

C++

#include<iostream>   

using namespace std;    

int factorial(int number)  {  

   if (number == 0)  

       return 1;  

   return number * factorial(number - 1);  }    

int main()  {  

   int integer;

   cout<<"Enter a non negative integer: ";

   cin>>integer;

   cout<< "Factorial of "<< integer<<" is "<< factorial(integer)<< endl;  }

Python:

def factorial(number):  

   if number == 0:  

       return 1

   return number * factorial(number-1)  

integer = int(input("Enter a non negative integer: "))  

print("Factorial of", integer, "is", factorial(integer))

b)

C++

#include <iostream>  

using namespace std;

double factorial(int number) {  

if (number == 0)  

 return 1;  

return number * factorial(number - 1); }  

double estimate_e(int num){

    double e = 1;

    for(int i = 1; i < num; i++)

     e = e + 1/factorial(i);

     cout<<"e: "<< e; }  

int main(){

int term;

cout<<"Enter a term to evaluate: ";

cin>>term;

estimate_e(term);}

Python:

def factorial(number):  

   if number == 0:  

       return 1

   return number * factorial(number-1)  

def estimate_e(term):

   if not term:

       return 0

   else:

       return (1 / factorial(term-1)) + estimate_e(term-1)

number = int(input("Enter how many terms to evaluate "))

print("e: ", estimate_e(number))

c)

C++

#include <iostream>

using namespace std;

int main(){

   float terms, sumSeries, series;

   int i, number;

   cout << " Input the value of x: ";

   cin >> number;

   cout << " Input number of terms: ";

   cin >> terms;

   sumSeries = 1;

   series = 1;

   for (i = 1; i < terms; i++)      {

       series = series * number / (float)i;

       sumSeries = sumSeries + series;     }

   cout << " The sum  is : " << sumSeries << endl;  }  

Python    

def ePowerx(number,terms):

   sumSeries = 1

   series =1

   for x in range(1,terms):

       series = series * number / x;

       sumSeries = sumSeries + series;

   return sumSeries    

num = int(input("Enter a number: "))

term=int(input("Enter a number: "))

print("e^x: ",ePowerx(num,term))

Explanation:

a)

The program has a method factorial that takes numbers as parameter and computes the factorial of that number by using recursion. For example if the number = 3

The base case is  if (number == 0)

and

recursive is return number * factorial(number - 1);    

Since number = 3 is not equal to zero so the method calls itself recursively in order to return the factorial of 3

return 3* factorial(3- 1);

3 * factorial(2)

3* [2* factorial(2- 1) ]

3 * 2* [ factorial(1)]

3 * 2 * [1* factorial(1- 1) ]

3 * 2 * 1* [factorial(0)]

Now at factorial(0) the base condition is reached as number==0 So factorial(0) returns 1

Now the output is:

3 * 2 * 1* 1

return 6

So the output of this program is

Factorial of 3 is 6

b)

The method estimate_e takes a number i.e. num as parameter which represents the term and estimates the value of the mathematical constant e

The for loop iterates through each term. For example num = 3

then  

e = e + 1/factorial(i);  

The above statement calls works as:

e = 1 + 1/1! +1/2!

since the number of terms is 3

e is initialized to 1

i  is initialized to 1

So the statement becomes:

e = 1 + 1/factorial(1)

factorial function is called which returns 1 since factorial of 1 is 1 So,

e = 1 + 1/1

e = 2

Now at next iteration at i = 2 and e = 2

e = 2 + 1/factorial(2)

e = 2 + 1/2

e = 2.5

Now at next iteration at i = 3 and e =3

e = 3 + 1/factorial(3)

e = 3 + 1/6

e = 3.16666

So the output is:

e: 3.16666

c)

The program computes the sum of series using formula:

e^x = 1 + x/1! + x^2/2! + x^3/3! +...

The for loop iterates till the number of terms. Lets say in the above formula x is 2 and number of terms is 3. So the series become:

e^x = 1 + x/1! + x^2/2!

So number = 2

terms = 3

series =1

sumSeries = 1

i = 1

The statement series = series * number / (float)i; works as following:

series = 1 * 2 /1

series = 2

sumSeries = sumSeries + series;

sumSeries = 1 + 2

sumSeries = 3

At next iteration: i=2, series =2 , sumSeries =3

series = 2 * 2/2

series = 2

sumSeries = 3 + 2

sumSeries = 5

Now the loop breaks as i=3

So output returns the value of sumSeries i.e. 5

Output:

e^x: 5

Answer:

b. You can track changes.

Explanation:

Setting up a workbook to be shared if you are the only one using the workbook is to enable you track the changes that may occur.

When sharing a workbook, you can allow users gain access to it, make changes and then you easily track those changes.

It makes a team to work simultaneously on the same workbook.

A work book is a file that consists of more than work sheet that helps you to organize A workbook can be created from a blank workbook or a template.

Hence the option B is correct.

Learn more about the set up of a workbook to be shared if you.

brainly.in/question/20376644.

Answer:

A) True

Explanation:

Java provides collections architecture or framework used to store and manipulate a group of objects or collections.

The collection framework has interfaces which include; Set, Queue, Deque, List, as well as classes which include; Hashset, ArrayList, LinkedList, LinkedHashset, PriorityQueue, Vector and TreeSet.

There are also many methods declared in the collection interface which include; add(), addAll(), remove(), removeAll(),retainAll(), clear(), size(), iterator(), toArray() etc

Answer:

It is  just true in most cases

Explanation:

This statement is just true in most cases because in some cases having a physical access to the computer or hard drive this does not guarantee access to the information contained in the hard drive or computer because the data/information in the hard drive or computer might as well be encrypted and would require a password in order to de-crypt the information.

Having a physical access is one step closer in some cases but not the only step required .

Answer:

a = int(input("Enter first value between 1 - 10"))

b = int(input("Enter second value between 1 - 10"))

z = a + b

z += 30

print("The value of z = ", z)

Explanation:

The code is written above in python language to perform the given task.

Now, let us explain each statement of code.

Step 1: The first two lines take input from the user prompting the user to enter the values between 1 to 10.

Then the values are type casted to int using int().

The values are stored in variables a and b.

Step 2: Then, the values of a and b are added to get another variable z.

Step 3: The statement 'z += 30' is equivalent to z = z+30

It adds 30 to the variable z and stores it in the same variable z.

Step 4: Finally the value of variable 'z' is printed using print() command.

Answer:

Explanation:A letter is a written message conveyed from one person to another person through a medium. Letters can be formal and informal. Besides a means of communication and a store of information, letter writing has played a role in the reproduction of writing as an art throughout history.

Answer:

A letter is a written message conveyed from one person to another person through a medium. Letters can be formal and informal. Besides a means of communication and a store of information, letter writing has played a role in the reproduction of writing as an art throughout history.