True or false?

[20 pts] Write the function rectangle(perimeter, area), which takes two positive integers, perimeter and area. It returns an int

MrRissso [65]

Hi, you haven't provided the programing language in which you need the code, I'll explain how to do it using Python, and you can follow the same logic to make a program in the programing language that you need.

Answer:

import math

def rectangle(perimeter, area):

l1_1 = (perimeter+math.sqrt((perimeter**2)-(16*area)))/4

l1_2 = (perimeter-math.sqrt((perimeter**2)-(16*area)))/4

l2_1 = area/l1_1

l2_2 = area/l1_2

print(l1_1,l2_1)

print(l1_2,l2_2)

if l1_1.is_integer() and l2_1.is_integer() and l1_1>0 and l2_1>0:

return(int(max(l1_1,l2_1)))

elif l1_2.is_integer() and l2_2.is_integer() and l1_2>0 and l2_2>0:

return(int(max(l1_2,l2_2)))

else:

return(None)

Explanation:

We import math to make basic operations
We define the rectangle function that receives perimeter and area
We calculate one of the sides (l1_1) of the rectangle using the quadratic equation to solve 2h^2 - ph + 2a = 0
We calculate the second root of the quadratic equation for the same side (l1_2)
We calculate the second side of the rectangle using the first root on w = a/h
We calculate the second side of the rectangle using the second root on w= a/h
We verify that each component of the first result (l1_1, l2_1) is an integer (using the build-in method .is_integer) and greater than 0, if True we return the maximum value between them (using the max function) as w
If the first pair of sides evaluate to False we check the second root of the equation and if they meet the specification we return the max value
if all the if statements evaluate to false we return None to indicate that not positive or integer sides were found

7 0

3 years ago

Write a program that will calculate the following function:

anyanavicka [17]

Shshshshshshsjsjsjsjjsjdhdhhddhhd

8 0

3 years ago

A teacher has five students who have taken four tests. The teacher uses the following grading scale to assign a letter grade to

AlladinOne [14]

Answer:

#include <iostream>

using namespace std;

int main()

{

const int numofStudents = 5;//number of students

const int numofTests = 2;//number of tests taken by students

const int grade = 5;//number of grades available

char letter[grade] = { 'A','B','C','D','F' };

double table[numofStudents][numofTests];//defining 2darray with names and scores

string names[numofStudents];//storing names of students

for (int num = 0; num < numofStudents; num++)//storing names and scores of students

{

cout << "Enter student's name: ";

cin >> names[num];

for (int test = 0; test < numofTests; test++)//scores loop

{

cout << "Enter the test score: ";

cin >> table[num][test];

if (table[num][test] < 0 || table[num][test]>100)//input validation

{

cout << "Invalid input. Try again" << endl;

cin >> table[num][test];//input again

}

for (int i = 0;i < numofStudents;i++)//calculating averages and grades

{

int sum = 0;

cout << "Test scores for " << names[i] << ": " << endl;

for (int j = 0;j < numofTests;j++)

{

cout << table[i][j] << " ";

sum += table[i][j];//summing scores

}

cout << endl;

float average = (float)sum / numofTests;//calculating the average

cout << "Making an average of: "<< average;

if (average <= 100 && average >= 90)//assigning a grade

{

cout << " and has received an " << letter[0];

}

else if (average <= 89 && average >= 80)

{

cout << " and has received a " << letter[1];

}

else if (average <= 79 && average >= 70)

{

cout << " and has received a " << letter[2];

}

else if (average <= 69 && average >= 60)

{

cout << " and has received a " << letter[3];

}

else if (average <= 59 && average >= 0)

{

cout << " and has received an " << letter[4];

}

else

{

cout << "Invalid scores entered." << endl;

}

cout << endl;

}

return 0;

}

Explanation:

We first define the number of students, number of tests and number of grades available for assignments. We then fill in the 2D array of students names and their scores making sure assigning more than 100 and less than 0 is not allowed. We then sum the scores and retrieve an average. Using the average, a letter grade is assigned to that individual.

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To quickly save a file, use the keyboard shortcut ________. ctrtl shift s ctrl s ctrl a ctrl shift-a

Advocard [28]

You have to use control + s only. but if you want to save it in different format, use control + shift + S

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3 years ago

We look for trends when we are looking at data. What is a trend?

yulyashka [42]

A subject of what people say at the time, most used, famous at the present time

4 0

3 years ago

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