Answer:
All of the above.
Explanation:
An operating system is a system software pre-installed on a computing device to manage or control software application, computer hardware and user processes.
This ultimately implies that, an operating system acts as an interface or intermediary between the computer end user and the hardware portion of the computer system (computer hardware) in the processing and execution of instructions.
Some examples of an operating system on computers are QNX, Linux, OpenVMS, MacOS, Microsoft windows, IBM, Solaris, VM etc.
Hence, the operating system (OS) provides utility software designed to perform specific tasks. Some of the tasks it performs are;
A. Establishing an Internet connection.
B. Coordinating tasks between programs.
C. Configuring peripheral devices.
D. Monitoring security.
Are actors and athletes paid too much?
Answer:
The output of the given code as follows:
Output:
Area is: 12.60676
Explanation:
In the given code some information is missing so, the correct code to this question can be described as follows:
Program:
public class Test //defining class
{
public static void main(String[] args)//defining the main method
{
double radius= 2; //defining double variable radius
final double PI= 3.15169; //defining double variable PI
double area = radius * radius * PI; //defining double variable area that calculates values
System.out.println("Area is: " + area); //print values
}
}
Explanation:
- In the given java code a class "Test" is defined, in which a double variable "radius" is defined, which holds a value, that is 2.
- In the next step, a double constant variable, that is PI is defined, that holds a value, that is "3.15169".
- Then another double variable area is defined, that calculates the area value, and prints its value.
Answer:
Zebra.
Explanation:
Stack is LIFO, so Zebra is added in the last so it will be removed first.
Answer:
False
Explanation:
NPV stands for Net Present Value, it is an important term in finance as it used to determine the value of money or investment based on a series of cashflows and specified discount rate. Excel provides a functions which aids easy calculation of the Net Present value of money or investment using the NPV formula. The syntax forbthe NPV formula is :
=NPV(rate,value 1, [value 2],...)
This formular requires only tow key parameters ; the discount rate, which comes first and the cashflows, which is designated in the syntax as values ; the cashflows is usually placed in a range of cells in excel and the cell range is inputed in the formular. Hence, the number of payments and future value aren't part of the NPV syntax.
