1. Write code that prints the square root of the value in the variable num rounded to 4 decimal places. Assume that num already has a value and that the math module has been imported.

System.out.printf("The square root is %.4f\n",sqrt);

Explanation:

In Java programming language using the print format method of System.out One can specify the the number of decimal places. In this case to 4 decimal places.

See a complete code snippet below

public class num1 {

   public static void main(String[] args) {

       double num =5;

       double sqrt = Math.sqrt(5);

       System.out.printf("The square root is $%.4f\n",sqrt);

   }

}

i believe the two important functions that skype uses are nat traversal and user location.good luck        

explanation: