Convert the following infix expressions to prefix and postfix form, and draw the expression tree for each. Assume the normal Java operators and precedence rules. Tip: For representing the expression tree as text, get creative! Use your best ASCII Art skills or other ways to represent the tree. 1. a) (a * b) + C
PREFIX:
POSTFIX:
EXPRESSION TREE:
2. b) a * b + c/d + 3
PREFIX:
POSTFIX:
EXPRESSION TREE:
3. c) a + 4* (e+d/2)
PREFIX:
POSTFIX:
EXPRESSION TREE:

How do i draw hello world in python and how do i make it loop?

Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate for the data below. internet speed levels of "fast comma " "medium comma " and "slow" choose the correct answer below. a. the ordinal level of measurement is most appropriate because the data can be ordered comma but differences left parenthesis obtained by subtraction right parenthesis cannot be found or are meaningless. nothing nothing nothing nothing nothing b. the interval level of measurement is most appropriate because the data can be ordered comma differences left parenthesis obtained by subtraction right parenthesis can be found and are meaningful comma and there is no natural starting point. c. the nominal level of measurement is most appropriate because the data cannot be ordered. nothing d. the ratio level of measurement is most appropriate because the data can be ordered comma differences left parenthesis obtained by subtraction right parenthesis can be found and are meaningful comma and there is a natural starting point.

In a game with three frames, where will the objects on layer 1 appear? a. next to the play area b. in the middle of the game c. behind everything else d. in front of everything else