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AleksandrR [38]
3 years ago
12

___ is an example of a function prototype.

Computers and Technology
1 answer:
Alborosie3 years ago
4 0

Answer:

A

Explanation:

B is a print statement.

C is a function invocation

D is a function declaration

A prototype is actually quite close to a declaration. The semi-colon at the end shows that no implementation will follow. Adding parameter names is allowed but would only be helpful for better understanding.

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On a piano, a key has a frequency, say f0. Each higher key (black or white) has a frequency of f0 * rn, where n is the distance
lesantik [10]

Answer:

In C:

#include <stdio.h>

#include <math.h>

int main(){

   float f0,r,temp;

   r = pow(2.0,1.0/12);

   printf("f0: ");    scanf("%f", &f0);

   temp = f0;

   for(int i = 0; i<=4;i++){

       f0 = f0 * pow(r,i);

       printf("%.2lf ", f0);

       f0 = temp;    }

   return 0;

}

Explanation:

This declares f0, r and temp as float

   float f0,r,temp;

This initializes r to 2^(1/12)

   r = pow(2.0,1.0/12);

This prompts the user for f0

   printf("f0: ");    scanf("%f", &f0);

This saves f0 in temp

   temp = f0;

This iterates the number of keys from 0 to 4

   for(int i = 0; i<=4;i++){

This calculates each key

       f0 = f0 * pow(r,i);

This prints the key

       printf("%.2lf ", f0);

This gets the initial value of f0

       f0 = temp;    }

   return 0;

8 0
3 years ago
What is the function of tab?<br>​
Sholpan [36]

Answer:

The function of the tab is used to advance the cursor to the next tab key.

5 0
1 year ago
Assume that nextWord is a String variable that has been given a String value consisting entirely of letters. Write some Java cod
wel

Answer:

The code example is given below with explanation in c++ language.

Explanation:

Comments will explain what's going on in the code. Below code is already compiled and tested.

#include <time.h>

#include <iostream>

#include <sstream>

using namespace std;

int main(void)

{

//defining start and end time variable

// which will be used to break the infinte loop

   time_t endwait;

   time_t start = time(NULL);

   time_t seconds = 3; // end loop after this time has elapsed

cout<<"Input your number :";

long userNum;

cin>> userNum;

// initializing end time by adding seconds with start time

   endwait = start + seconds;

   // defining outputString which will concatenate all the  

   // divisible numbers in loop

string outputString="";

// bool isCompleted will use to check whether our  

// loop breaks successfully or time is expired.

bool isCompleted=true;

// iterate loop until it comes to 1. as in loop

// the program already displayed the 1 value.

   while (userNum>1)

   {  

  // checking start and end time comparison to  

  // break the infinite loop after some seconds

    if(start >= endwait){

     cout<< "Program end never reached.";

     isCompleted=false;

     break;

 }

 

    userNum=userNum/2;

   // defining stringstream to convert from long to string

    stringstream longToString;

    longToString<<userNum;

  // concatenating all the values

    outputString = outputString + longToString.str()+" ";

   // re initializing the start time with current time.

       start = time(NULL);

   }

   

  // check if while loop breaks successfully then print the

   // series of numbers here.

   if(isCompleted) {

    cout << outputString;

}

   return 0;

}

8 0
3 years ago
Help please, on tuesday we have oral presentation in zoom and i am afraid to speak in front of people, and i don't know what to
Lapatulllka [165]

Answer:

You should be strong, and be sure about what you want to say. Make sure when you speak it is clear, and makes sense.

Explanation:

If you don't speak up or sound like you know what you are talking about. I like to think of it as dancing. Act like you own the stage, or in your case, like you own the presentation. Also, I suggest you speak to your teacher in private, about him ignoring you. If I were you, I would look for newer friends. Ones that won't ignore you.

6 0
3 years ago
Which of the following is not an example of a technological aid?
emmainna [20.7K]
I think the correct answer among the choices given is option A. Manipulative aids are not technological aids. It refers to items that is used to support hands-on learning like markers, toothpick or coins. Technological aids, on the other hand, are things which makes use of the new technology present like slideshows, DVD's, audioclips and projectors.
6 0
3 years ago
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