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MA_775_DIABLO [31]
3 years ago
7

The following code should take a number as input, multiply it by 8, and print the result. In line 2 of the code below, the * sym

bol represents multiplication. Fix the errors so that the code works correctly: input ("Enter a number: ") print (num * 8) The code above is pre-populated in your code editor. Hint: Remember that to think about the data type that the user will input. How can you make sure that their input is entered as a number?
Computers and Technology
1 answer:
Juli2301 [7.4K]3 years ago
6 0

Answer:

num = int(input("enter a number:"))

print(num * 8)

Explanation:

num is just a variable could be named anything you want.

if code was like this num = input("enter a number:")

and do a print(num * 8)

we get an error because whatever the user puts in input comes out a string.

we cast int() around our input() function to convert from string to integer.

therefore: num = int(input("enter a number:"))

will allow us to do  print(num * 8)

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Write a program that prompts the user for the lengths of the two legs of a right triangle, and which reports the length of the h
timurjin [86]

Answer: The following code is in c++

#include <iostream>

#include<math.h>

using namespace std;

int main()

{

   float a,b,c;

   cout<<"Enter height and base of triangle\n";

   cin>>a>>b;  //reading two sides from user

   c=sqrt(pow(a,2)+pow(b,2));  //calculating hypotenuse

   cout<<"Length of hypotenuse is "<<c;  //printing third side of triangle

   return 0;

}

OUTPUT :

Enter height and base of triangle                                                                                            

3                                                                                                                              

4                                                                                                                              

Length of hypotenuse is 5  

Explanation:

In the above code, three variables a, b and c of int type are declared. After that, it is asked from user to enter the value of a and b. The user puts the value and then c is calculated with the help of Pythagoras theorem formulae which squares the values of two sides and then adds them to calculate hypotenuse of a right angled triangle and finally c is printed to console.

3 0
3 years ago
Given an input array of strings (characters) s, pick out the second column of data and convert it into a column vector of data.
hodyreva [135]

Answer:

Consider the following code.

Explanation:

save the following code in read_and_interp.m

 

function X = read_and_interp(s)

[m, n] = size(s);

X = zeros(m, 1);

for i = 1:m

if(str2num(s(i, 2:5)) == 9999)

% compute value based on previous and next entries in s array

% s(i, 2:5) retrieves columns 2-5 in ith row

X(i,1) = (str2num(s(i-1 ,2:5)) + str2num(s(i+1,2:5)))/2;

else

X(i,1) = str2num(s(i,2:5));

end

end

end

======================

Now you can use teh function as shown below

s = [ 'A' '0096' ; 'B' '0114' ; 'C' '9999' ; 'D' '0105' ; 'E' '0112' ];

read_and_interp(s)

output

ans =

96.000

114.000

109.500

105.000

112.000

7 0
3 years ago
Define a void function that calculates the sum (+), difference (-), product (*), quotient (/), and modulus (%) of two integer nu
BabaBlast [244]

Answer:

#include <iostream>

using namespace std;

void multipurpose(int &num1,int &num2,int &add,int &subt,int &multi,int &divi,int &modulo )

{

   add=num1+num2;//adding two numbers...

   subt=abs(num1-num2);//subtracting two numbers...

   multi=num1*num2;//multiplying two numbers...

   divi=num1/num2;//Finding quotient of two numbers...

   modulo=num1%num2;//Finding modulo of two numbers...

}

void print(int add,int sub,int divi,int multi,int modulo) //function to print the values.

{

   cout<<"The addition is "<<add<<endl<<"The subtraction is "<<sub<<endl

   <<"The quotient is "<<divi<<endl<<"The multiplication is "<<multi<<endl

   <<"The modulus is "<<modulo<<endl;

}

int main() {

   int a,b,sum=0,mult=0,divi=0,sub=0,modulo=0;

   cin>>a>>b;

   multipurpose(a,b,sum,sub,mult,divi,modulo);

   print(sum,sub,divi,mult,modulo);

return 0;

}

Enter the numbers

12 12

The addition is 24

The subtraction is 0

The quotient is 1

The multiplication is 144

The modulus is 0

Explanation:

I have created a function multipurpose that has a argument list of two numbers ,and variables for addition,subtraction,multiplication,Division,Modulus and these all are passed by reference.Since the function is of type void so it cannot return anything so the only way to store the result is by passing the variables to store the results by  reference.

The other function print has the arguments of all the results here you can pass them by value or by reference because you only need to print the results.

7 0
3 years ago
How do I add my bestie on brainy? /??!!! ​
ziro4ka [17]

Answer:

You have to remember their name on here

Explanation:

If u dont you cant talk to them again

3 0
2 years ago
Which of the following allows a user to quickly access a frequently used computer app? Alphabetize program icons. O Create a sho
professor190 [17]

Answer:

Create a shortcut on the toolbar

Explanation:

You can use process of elimination. alphabetizing would not help to find it quicker, but it is an easier way. Deleting all icons wouldn't help at all. And placing all icons in a folder would make it even messier. So, it is creating a shortcut. Plus, I got it right on my test :)

7 0
3 years ago
Read 2 more answers
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