I’m joining the robotics team in my school, but my knowledge is pretty basic. What should I do to improve myself?

Which data type is -7

bixtya [17]

Answer:

integer

Explanation:

4 0

3 years ago

To quit, a user types 'q'. To continue, a user types any other key. Which expression evaluates to true if a user should continue

devlian [24]

Answer:

!(key == 'q')

Explanation:

Based on the description, the coded expression that would equate to this would be

!(key == 'q')

This piece of code basically states that "if key pressed is not equal to q", this is because the ! symbol represents "not" in programming. Meaning that whatever value the comparison outputs, it is swapped for the opposite. In this case, the user would press anything other than 'q' to continue, this would make the expression output False, but the ! operator makes it output True instead.

3 0

2 years ago

How do you select a single cell, a single column, a single

Vedmedyk [2.9K]

Answer:

To select nonsequential cells, click the first cell, hold down the Ctrl key, and click each additional cell (or row or column) you want to select. To selectthe entire worksheet, click the small box located to the left of column A and above row 1. Optionally, you can selectall cells in a worksheet by pressing COMMAND+A......

To select all cells on a worksheet, use one of the following methods:

Click the Select All button.Press COMMAND+A. Note If the worksheet contains data, and the active cell is above or to the right of the data, pressing COMMAND+A selects the current region. Pressing COMMAND+A a second time selects the entire worksheet.

8 0

2 years ago

Assume that a gallon of paint covers about 350 square feet of wall space. Create an application with a main() method that prompt

Makovka662 [10]

Answer:

#include <iostream>

#include <cmath>

using namespace std;

///////////////////////////////////////////////////////////////////////

int noOfGallons(int wallArea) {

int gallon = 350;

int gallon_price = 32.0;

float total_price = 0.0;

///////////////////////////////////////////

float noOfGallons = (float)wallArea/(float)gallon;

printf("No of gallons needed %.2f", noOfGallons);

cout<<endl;

//////////////////////////////////////////

total_price = noOfGallons*gallon_price;

return round(total_price);

}

int wallArea(int length, int width, int height) {

int wall_area = length*width;

int total_price = noOfGallons(wall_area);

}

///////////////////////////////////////////////////////////////////////

int main() {

int length, width, height;

///////////////////////////////////////////

cout<<"Enter length: ";

cin>>length;

cout<<"Enter width: ";

cin>>width;

cout<<"Enter height: ";

cin>>height;

cout<<endl;

///////////////////////////////////////////

int total_price = wallArea(length, width, height);

cout<<"Total price: $"<<total_price;

///////////////////////////////////////////

return 0;

}

5 0

2 years ago

Write a program that dynamically allocates an array large enough to hold a user-defined number of test scores. Once all the scor

Anastasy [175]

Answer:

// Program written in C++

// Comments are used to explain some lines

#include <iostream>

#include <iomanip>

using namespace std;

// Functions

void getData(double *, int);

void selectionSort(double *, int);

double getAverage(double *, int);

void displayData(double *, int, double);

int main() //Main Method

{

double *ToTest, // To dynamically allocate an array

Average; // To hold the average of the scores

int Scores; // To hold number of scores

// Get number of scores

cout << "Number of average to find? ";

cin >> Scores;

// Allocate an array to number of scores

ToTest = new double[Scores];

getData(ToTest, Scores);

selectionSort(ToTest, Scores);

Average = getAverage(ToTest, Scores);

printData(ToTest, Scores, Average);

return 0;

}

//Get Data

void getData(double *ToTest, int Scores)

{

cout << "Enter each scores.\n";

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

{

do

{

cout << "Score #" << (i + 1) << ": ";

cin >> *(ToTest + i);

if (*(ToTest + i) < 0)

{

cout << "Scores must be greater than 0.\n"

<< "Re-enter ";

}

} while (*(Test + i) < 0);

}

// Selection Sort

void selectionSort(double *ToTest, int Scores)

{

int startscan, minIndex;

double minValue;

for (startscan = 0; startscan < (Scores - 1); startscan++)

{

minIndex = startscan;

minValue = *(ToTest + startscan);

for (int i = startscan + 1; i < Scores; i++)

{

if (*(ToTest + i) < minValue)

{

minValue = *(Test + i);

minIndex = i;

}

*(ToTest + minIndex) = *(ToTest + startscan);

*(ToTest + startscan) = minValue;

}

// Calculate Average

double getAverage(double *ToTest, int Scores)

{

double Total;

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

{

Total += *(ToTest + i);

}

return Total / Scores;

}

// Print Data

void printData(double *ToTest, int Scores, double Avg)

{

cout << "\n Test scores\n";

cout << "Number of scores: " << Scores << endl;

cout << "Scores in ascending-order:\n";

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

{

cout << "#" << (i + 1) << ": " << *(ToTest + i) << endl;

}

cout << fixed << showpoint << setprecision(2);

cout << "Average score: " << Avg << endl;

}

6 0

2 years ago