Answer:
the last one I think not 100% sure
<span>Option A, the search engine is the way to get information on the internet through a web browser, installed on an operating system of a computer. It is software that gathers all the information and stores it to accelerate the search for the users by entering the data of the desired information.</span>
Yes don't trust at all, I've got that so many times
Answer:
A
Explanation:
Cryptography is the study of secure communications techniques that allow only the sender and intended recipient of a message to view its contents. ... When transmitting electronic data, the most common use of cryptography is to encrypt and decrypt email and other plain-text messages.
Answer:
Following are the code to the given question:
public class Main//defining a class Main
{
static int permut(int n, int r)//defining a method permut that holds two variable
{
return fact(n)/fact(n-r);//use return keyword to return calcuate value
}
static int fact(int n)//defining a fact method as recursive to calculate factorials
{
return n==0?1:n*fact(n-1);//calling the method recursively
}
public static void main(String[] abs)//main function
{
//int n=7,r=4;//defining integer variable
System.out.println(permut(7,4));//use print method to call permut method and print its values
}
}
Output:
840
Explanation:
Following is the explanation for the above code.
- Defining a class Main.
- Inside the class two methods, "permut and fact" were defined, in which the "permut" accepts two values for calculating its permutated value, and the fact is used for calculates factorial values recursively.
- At the last, the main method is declared, which uses the print method to call "permut" and prints its return values.
