STA-4321 Lecture 14: Chapter 4 part 4b

What are the values for x, y and z for this system of equations?

x+x+x=21
y+y+x=19
z+y+x=15

23. What does the following program print? void setup() { int x = 10; timesTwo (x); println(x); A. 10,20 B. 20, 10 C. 20,20 void timesTwo (int x) { x = x + 2; println(x);

31. What is printed by the following code in base 2? int sum = 0; for (int x = 0; x< 5; x++) sum+=x; System.out.println(sum); 21 x 21 + 0 x 23+1 22 +1 x 21 +1 x 20