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3 years ago

Give a recursive algorithm for ﬁnding the sum of the ﬁrst n odd positive integers.

1 answer:

3 0

I'm writing that in some sort of pseudocode; if you don't understand it, feel free to ask for more details in the comments.

function sumOdd(n)
if n==1 then
return 1
end if
return (sumOdd(n-1))+(n*2-1)
end function

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Choose the words that make the following sentence true. Primary memory is

ki77a [65]

Answer:

Primary memory is computer memory that is accessed directly by the CPU

Explanation:

8 0

3 years ago

Description:

Nastasia [14]

Answer:

The programming language is not stated (I'll answer using C++)

#include <iostream>

using namespace std;

int convert(float miles)

{

return miles * 5280;

}

int main() {

cout<<"Console:"<<endl;

cout<<"Hike Calculator"<<endl;

float miles;

char response;

cout<<"How many miles did you walk?. ";

cin>>miles;

cout<<"You walked "<<convert(miles)<<" feet"<<endl;

cout<<"Continue? (y/n): ";

cin>>response;

while(response == 'y')

{

cout<<"How many miles did you walk?. ";

cin>>miles;

cout<<"You walked "<<convert(miles)<<" feet"<<endl;

cout<<"Continue? (y/n): ";

cin>>response;

}

cout<<"Bye!";

return 0;

}

Explanation:

Here, I'll explain some difficult lines (one after the other)

The italicized represents the function that returns the number of feet

int convert(float miles)

{

return miles * 5280;

}

The main method starts here

int main() {

The next two lines gives an info about the program

cout<<"Console:"<<endl;

cout<<"Hike Calculator"<<endl;

float miles;

char response;

This line prompts user for number of miles

cout<<"How many miles did you walk?. ";

cin>>miles;

This line calls the function that converts miles to feet and prints the feet equivalent of miles

cout<<"You walked "<<convert(miles)<<" feet"<<endl;

This line prompts user for another conversion

cout<<"Continue? (y/n): ";

cin>>response;

This is an iteration that repeats its execution as long as user continue input y as response

while(response == 'y')

{

cout<<"How many miles did you walk?. ";

cin>>miles;

cout<<"You walked "<<convert(miles)<<" feet"<<endl;

cout<<"Continue? (y/n): ";

cin>>response;

}

cout<<"Bye!";

8 0

3 years ago

Write a program that will predict the size of a population of organisms. The program should ask the user for the starting number

sineoko [7]

Answer:

// using c++ language

#include "stdafx.h";

#include <iostream>

#include<cmath>

using namespace std;

//start

int main()

{

//Declaration of variables in the program

double start_organisms;

double daily_increase;

int days;

double updated_organisms;

//The user enters the number of organisms as desired

cout << "Enter the starting number of organisms: ";

cin >> start_organisms;

//Validating input data

while (start_organisms < 2)

{

cout << "The starting number of organisms must be at least 2.\n";

cout << "Enter the starting number of organisms: ";

cin >> start_organisms;

}

//The user enters daily input, here's where we apply the 5.2% given in question

cout << "Enter the daily population increase: ";

cin>> daily_increase;

//Validating the increase

while (daily_increase < 0)

{

cout << "The average daily population increase must be a positive value.\n ";

cout << "Enter the daily population increase: ";

cin >> daily_increase;

}

//The user enters number of days

cout << "Enter the number of days: ";

cin >> days;

//Validating the number of days

while (days<1)

{

cout << "The number of days must be at least 1.\n";

cout << "Enter the number of days: ";

cin >> days;

}

//Final calculation and display of results based on formulas

for (int i = 0; i < days; i++)

{

updated_organisms = start_organisms + (daily_increase*start_organisms);

cout << "On day " << i + 1 << " the population size was " << round(updated_organisms)<<"."<<"\n";

start_organisms = updated_organisms;

}

system("pause");

return 0;

//end

}

Explanation:

6 0

3 years ago

When one makes a social media post, what happens on other devices with the same app?

victus00 [196]

Answer:

An alert appears on the other devices

Explanation:

On social media platforms, whenever some one make a post, all the person who are using that social media app and present in the friend circle of that particular person receive an alert containing the information of the post.

The alert that received by different users on a social media platform is known as Notification. This notification is a type of text, in which the activity performed by post creator is mentioned, this text is received with the tone called notification tone.

The purpose of the alert is to informs the friends who are using that social media platform that a post has been published by someone.

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3 years ago

Select the correct statement below about database services or database instances:

Zigmanuir [339]

The correct statement about database services or database instances is

( B).An instance of the cloud database operates as a service that handles all application requests to work with the data in any of the databases managed by that instance.

Explanation:

An instance of the Database Engine can be defined as a service that all application requests to work with the data in any of the databases managed by that instance.The data can be on the same system or can be on another system

So in case of a Cloud based database engine

( B).An instance of the cloud database operates as a service that handles all application requests to work with the data in any of the databases managed by that instance.

8 0

3 years ago