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3 years ago

What is (9x - 3) - 7^2, if x=6.

Computers and Technology

2 answers:

Nikitich [7]3 years ago

6 0

Answer:

because if x = 6 then 9 times 6 is 54 minus 3 = 51 then minus 49 because 7^2 is 49 and 51 - 49 is 2

Explanation:

Trust ME

attashe74 [19]3 years ago

3 0

Answer:

Explanation:

you will see trust me, I had this question but cant tell with writing

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Package Newton’s method for approximating square roots (Case Study: Approximating Square Roots) in a function named newton. This

Shtirlitz [24]

Answer:

def newton(n):

#Define the variables.

t = 0.000001

esti = 1.0

#Calculate the square root

#using newton method.

while True:

esti = (esti + n / esti) / 2

dif = abs(n - esti ** 2)

if dif <= t:

break

#Return the result.

return esti

#Define the main function.

def main():

#Continue until user press enters.

while True:

try:

#Prompt the user for input.

n = int(input("Enter a number (Press Enter to stop):"))

#display the results.

print("newton = %0.15f" % newton(n))

except:

return

#Call the main function.

main()

7 0

4 years ago

For python how do I ask the user how many numbers they want to enter and then at the ending add those numbers up together?

Digiron [165]

I am not too familiar with the Python language, but the algorithm would be something like this:

1. create a variable for the sums of the number

2. read in how many numbers the user wants to enter (let's call it N)

and then create a for loop:

for N times

read in the next number

increase the sum variable by that number

Hopefully this helps!

8 0

3 years ago

How to deactivate the brainly app?

galina1969 [7]

Answer:

Don't you just uninstall it?

Explanation:

5 0

3 years ago

Read 2 more answers

The return value is a one-dimensional array that contains two elements. These two elements indicate the rows and column indices

erma4kov [3.2K]

Answer:

In Java:

import java.util.Scanner;

import java.util.Arrays;

public class Main {

public static void main(String args[]) {

Scanner input = new Scanner(System.in);

int row, col;

System.out.print("Rows: "); row = input.nextInt();

System.out.print("Cols: "); col = input.nextInt();

int[][] Array2D = new int[row][col];

System.out.print("Enter array elements: ");

for(int i =0;i<row;i++){

for(int j =0;j<col;j++){

Array2D[i][j] = input.nextInt();

} }

int[] maxarray = findmax(Array2D,row,col);

System.out.println("Row: "+(maxarray[0]+1));

System.out.println("Column: "+(maxarray[1]+1));

}

public static int[] findmax(int[][] Array2D,int row, int col) {

int max = Array2D[0][0];

int []maxitem = new int [2];

for(int i =0;i<row;i++){

for(int j =0;j<col;j++){

if(Array2D[i][j] > max){

maxitem[0] = i;

maxitem[1] = j; } } }

return maxitem;

}

Explanation:

The next two lines import the scanner and array libraries

import java.util.Scanner;

import java.util.Arrays;

The class of the program

public class Main {

The main method begins here

public static void main(String args[]) {

The scanner function is called in the program

Scanner input = new Scanner(System.in);

This declares the array row and column

int row, col;

This next instructions prompt the user for rows and get the row input

System.out.print("Rows: "); row = input.nextInt();

This next instructions prompt the user for columns and get the column input

System.out.print("Cols: "); col = input.nextInt();

This declares the 2D array

int[][] Array2D = new int[row][col];

This prompts the user for array elements

System.out.print("Enter array elements: ");

The following iteration populates the 2D array

for(int i =0;i<row;i++){

for(int j =0;j<col;j++){

Array2D[i][j] = input.nextInt();

} }

This calls the findmax function. The returned array of the function is saved in maxarray

int[] maxarray = findmax(Array2D,row,col);

This prints the row position

System.out.println("Row: "+(maxarray[0]+1));

This prints the column position

System.out.println("Column: "+(maxarray[1]+1));

The main method ends here

}

The findmax function begins here

public static int[] findmax(int[][] Array2D,int row, int col) {

This initializes the maximum to the first element of the array

int max = Array2D[0][0];

This declares maxitem. The array gets the position of the maximum element

int []maxitem = new int [2];

The following iteration gets the position of the maximum element

for(int i =0;i<row;i++){

for(int j =0;j<col;j++){

if(Array2D[i][j] > max){

maxitem[0] = i; -- The row position is saved in index 0

maxitem[1] = j; -- The column position is saved in index 1} } }

This returns the 1 d array

return maxitem;

}

7 0

3 years ago

Add three methods to the Student class that compare twoStudent objects. One method (__eq__) should test for equality. A second m

shusha [124]

Answer:

class Student(object):

def __init__(self, name, number):

self.name = name

self.scores = []

for count in range(number):

self.scores.append(0)

def getName(self):

return self.name

def setScore(self, i, score):

self.scores[i - 1] = score

def getScore(self, i):

return self.scores[i - 1]

def getAverage(self):

return sum(self.scores) / len(self._scores)

def getHighScore(self):

return max(self.scores)

def __eq__(self,student):

return self.name == student.name

def __ge__(self,student):

return self.name == student.name or self.name>student.name

def __lt__(self,student):

return self.name<student.name

def __str__(self):

return "Name: " + self.name + "\nScores: " + \

" ".join(map(str, self.scores))

def main():

student = Student("Ken", 5)

print(student)

for i in range(1, 6):

student.setScore(i, 100)

print(student)

print("\nSecond student")

student2 = Student("Ken", 5)

print(student2)

print("\nThird student")

student3 = Student("Amit", 5)

print(student3)

print("\nChecking equal student1 and student 2")

print(student.__eq__(student2))

print("\nChecking equal student1 and student 3")

print(student.__eq__(student3))

print("\nChecking greater than equal student1 and student 3")

print(student.__ge__(student3))

print("\nChecking less than student1 and student 3")

print(student.__lt__(student3))

if __name__ == "__main__":

5 0

3 years ago