Answer:
#include <iostream>
using namespace std;
int main()
{
float radius = 5.4;
float circumference = 2 * 3.14 * radius;
float area = 3.14 * radius * radius;
cout<<"the circumference of the circle is "<<circumference<<endl;
cout<<"the area of the circle is "<<area<<endl;
return 0;
}
Explanation:
Include the library iostream for using the input/output instructions.
create the main function and define the variable with value. Then,
use the formula to calculate the circumference and are of circle.
here, choose 
after that, display the result.
Note: All variable define in float type.
Answer:
A & D.
Explanation:
In real time operating system, the best description for this type of attack explained in the question is;
DOS and Race Condition.
Because race condition takes place when 2 or more threads are able to both access and change shared data simultaneously ,while DOS is a good foundation to build a custom made Real time operating system.
Thus, options A & D are correct.
Answer:
The python programming language is interesting for non-programmers as it is easy to learn the syntax. It has extensive libraries that can support every action of the non-programmer and programmer.
Explanation:
Python as a programming language has proved to be the easiest to learn and use. It is also powerful and versatile, making it the best choice for all beginners and experts. The readability of the Python language also makes it a great first programming language to learn. It enables one to think like a programmer and not waste time over any confusing syntax. Another great advantage possessed by the Python language is that it is easy to download and install for use.
Your answer is A, input device.
Answer:
ALL
Explanation:
Because if it was a test you can ask a teacher, if it was group projects you can ask the study group, if it was homework or 1 on 1 you can ask a tutor
