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wariber [46]
2 years ago
7

A ____ is a key that is composed of more than one attribute.

Computers and Technology
1 answer:
Artist 52 [7]2 years ago
4 0

Answer: A primary key that is made up of more than one attribute is known as a composite key.

You might be interested in
In 1971, Intel created and marketed the first microprocessor chip, called the Intel 4004. What was significant about this invent
PilotLPTM [1.2K]
The answer is D

<span>D) It allowed computers to be smaller because the chip allowed for the creation of computer components with varying capabilities.</span>
7 0
3 years ago
Write a static method named anglePairs that accepts three angles (integers), measured in degrees, as parameters and returns whet
padilas [110]

Answer:

The java program for the scenario is given below.  

import java.util.*;

public class Test

{

// method returning sum of all digits in the integer parameter

static boolean anglePairs(int a1, int a2, int a3)

{

   // variable to hold sum of two complementary angles

   int comp=90;  

   // variable to hold sum of two supplementary angles

   int supp=180;

   // boolean variable to hold result

   boolean result = false;

   if( (a1+a2 == comp) || (a2+a3 == comp) || (a1+a3 == comp) )

   {

       if( (a1+a2 == supp) || (a2+a3 == supp) || (a1+a3 == supp) )

           result = true;

       else

           result = false;

   }    

           // return variable result

       return result;

}

public static void main(String[] args)

{

   // method is called by passing three positive angles

   System.out.println("The pair of angles have both complementary and supplementary angles " + anglePairs(100, 80, 90) );    

}

}

OUTPUT

The pair of angles have both complementary and supplementary angles false

Explanation:

The program works as described below.

1. The method, anglePairs(), is declared as static having return type as Boolean which takes three positive integer parameters.

static boolean anglePairs(int a1, int a2, int a3)

{

}

2. The integer variable, comp, is declared and initialized to 90.

3. The integer variable, supp, is declared and initialized to 180.

4. The Boolean variable, result, is declared and initialized to false.

5. Using if-else statements, sum of two angles are compared with the variables, comp and supp.

6. If the sum of any two angles match with both, comp and supp, variables, the Boolean variable, result is assigned value true. Otherwise, result is assigned value false.

7. The value of result is returned.

8. Inside main() method, the function anglePairs() is called and three positive numerical values are passed as parameters.  The output is displayed.

9. All the above code is written inside the class Test.

10. User input is not taken since it is not mentioned in the question.

8 0
3 years ago
Visual Basics: 1 ) Write an if/else statement that compares the double variable pH with 7.0 and makes the following assignments
Lemur [1.5K]

Answer:

visual basic: 1)

Module PHmodule

   Sub Main()

       'Creating a variable for each entity

       dim ph as double = 0.0, neutral,base,acid as boolean

       'Writing a line to show user what to do

       console.writeline("Enter the pH :")

       'Taking the value

       ph=console.readline()

       'using if & elseif statement for distingushing the values into correct catagories

       if ph<7.0 then

       neutral=false:base=false:acid=true

       elseif ph>7.0 then  

       neutral=false:base=true:acid=false

       elseif ph=7.0 then

       neutral=true:base=false:acid=false

       end if

       'Printing the result

       console.writeline(" Neutral :" & Neutral)

       console.writeline(" base :" & base)

       console.writeline(" acid :" & acid)

       'command for staying in the command prompt for reading the result

       console.readline()

   End Sub

End Module

visual basic: 2)

Module AGEmodule()

  Sub Main()

       'Creating a variable for each entity

       dim age,minors,adults,seniors as integer = 0

       'Taking age from user

       console.writeline("Enter the age")

       age=console.readline()

       'using if & elseif statement for checking the age differnce

       if age<18 then'

       minors +=1

       else if age>18 and age<64 then

       adults +=1

       else if age>64 then  

       seniors +=1

       end if

       'printing result

       console.writeline("minors="&minors)

       console.writeline("adults="&adults)

       console.writeline("seniors="&seniors)

       'command for reading the result  

       console.readline()

  End Sub

End Module

Explanation:

visual basic 1) it is very simple program which allow us to find if the substance is acidic, basic or neutral. we use sim statement for making a variable as double (gives value in decimal) which allow to take a value from the user through console.readline() command and then by using the if statement we apply the condition if the ph is less then, greator then or equal to 7.0 value. thus the program gives us the answer. console.writeline() command is used to print a command on the screen while console.readline() command let us read the lines until we press enter.

visual basic 2)a program which allow us to count and add number of persons according to their age. we use dim statement for creating the variable as integers in which we take the age from user and then after checking it through if statement we increment according to three categories i.e. minors, adults, seniors. the console.writeline() command allow us to print anything on screen and console.readline() allowus to take value while compiling.

thank you...

6 0
3 years ago
Question 3 / 5
Andrej [43]

Answer:

False

Explanation:

3 0
3 years ago
What is the difference between a 13 column abacus and 5 column abacus?
Pepsi [2]

Answer:  The difference between these two types of abaci are the number the beads.

Explanation:

have a great day or night

4 0
3 years ago
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