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Burka [1]
2 years ago
13

________ a database rearranges data and objects in a database to make its size smaller

Computers and Technology
1 answer:
hodyreva [135]2 years ago
8 0
<span>An attribute in a relation of a database that serves as the primary key of another relation in the same database is called a

</span>
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3) 5, 10, 15, 20 are items of data. Explain how these could become information and what knowledge
yKpoI14uk [10]

For example when there is research on how many people shoplift in a shopping centre per week. These numbers could show a increase in the number of shoplifters per week.

8 0
2 years ago
Choose the correct function to convert the user’s response to the number 3.5. &gt;&gt;&gt; answer = input("How much does the sam
FromTheMoon [43]

Answer:

The answer to the given question is given bellow in the explanation section:

Explanation:

<p>This is python code</p>

<p>In python when you enter input into the input function as given:</p>

<code> answer = input("How much does the sample weigh in grams? ") </code>

I will be taken as string.

So I have to convert this string to number format here the given data is float value i-e 3.5

so let convert it. using float function.

<code> answer = float (input("How much does the sample weigh in grams? ") )  </code>

6 0
1 year ago
Read 2 more answers
Mark and John are developing a program using Python. They name a variable 24_hour_mart, but then recognize that this name violat
77julia77 [94]

Answer:

Option 2: Variable names can not begin with a number.

Explanation:

As given Mark and John named a variable as 24_hour_mart while writing a program in python.

While it is forbidden to name a variable starting with any digit, only alphabets (capital and smaller) and underscore can be the first letter of the variable name.

Moreover, by considering the other options given:

  • Variable name can include the underscore (_) between the words. It is used instead of spaces that are not allowed.
  • There is no upper limit for variable length, it can be of any reasonable length and more than 10 characters say 11 or 12 are reasonable.
  • There is no lower limit for variable length, it can be any reasonable length , even it can be of 1 character.

Variables named in python language must not be the keywords as they are reserved for other purposes.

i hope it will help you!

3 0
2 years ago
Write a static generic method PairUtil.minmax that computes the minimum and maximum elements of an array of type T and returns a
Gnesinka [82]

Answer:

Explanation:

The following code is written in Java. It is hard to fully create the code without the rest of the needed code including the T class and the Measurable interface. Regardless the following code can be implemented if you have that code available.

 public static T minmax(ArrayList<T> mylist) {

       T min = new T();

       T max = new T();

       for (int x = 0; x < mylist.size(); x++) {

           if (mylist.get(x) > max) {

               max = mylist.get(x);

           } else if (mylist.get(x) < min) {

               min = mylist.get(x);

           }

       }

       

       return (min, max);

   }

5 0
2 years ago
You are responsible for a rail convoy of goods consisting of several boxcars. You start the train and after a few minutes you re
maks197457 [2]

Answer:

The program in C++ is as follows:

#include <iostream>

#include <iomanip>

using namespace std;

int main(){

   int cars;

   cin>>cars;

   double weights[cars];

   double total = 0;

   for(int i = 0; i<cars;i++){

       cin>>weights[i];

       total+=weights[i];    }

   double avg = total/cars;

   for(int i = 0; i<cars;i++){

       cout<<fixed<<setprecision(1)<<avg-weights[i]<<endl;    }

   return 0;

}

Explanation:

This declares the number of cars as integers

   int cars;

This gets input for the number of cars

   cin>>cars;

This declares the weight of the cars as an array of double datatype

   double weights[cars];

This initializes the total weights to 0

   double total = 0;

This iterates through the number of cars

   for(int i = 0; i<cars;i++){

This gets input for each weight

       cin>>weights[i];

This adds up the total weight

       total+=weights[i];    }

This calculates the average weights

   double avg = total/cars;

This iterates through the number of cars

   for(int i = 0; i<cars;i++){

This prints how much weight to be added or subtracted

       cout<<fixed<<setprecision(1)<<avg-weights[i]<<endl;    }

4 0
1 year ago
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