A bank uses a computer program during the night to tell if the alarm should be rung. Sensors in the bank set the following Boolean variables: vaultClosed: set to true if the bank vault is closed; otherwise false

heardNoise: set to true if a microphone heard noise; otherwise false

sawMovement: set to true if a camera saw movement in the bank; otherwise false

The automatic alarm should notify the police if there is noise and movement in the bank, or if the bank vault is open.
Which of the following boolean expressions can be used in a selection statement to ring the alarm?
A. NOT vaultClosed OR (heardNoise AND sawMovement)
B. heardNoise AND vaultClosed
C. NOT vaultClosed AND sawMovement
D. heardNoise AND sawMovement

We as humans write math expression in infix notation, e.g. 5 + 2 (the operators are written in-between the operands). in a computer’s language, however, it is preferred to have the operators on the right side of the operands, i.e. 5 2 +. for more complex expressions that include parenthesis and multiple operators, a compiler has to convert the expression into postfix first and then evaluate the resulting postfix.write a program that takes an “infix” expression as input, uses stacks to convert it into postfix expression, and finally evaluates it. it must support the following operations: + - / * ^ % (example infix expression: (7 - 3) / (2 + 2)postfix expression: 7 3 - 2 2 + /result: 1guidelines: 1. you will need to use stacks in three placesa. one for the parenthesis check [char stack]b. one during infix to postfix [char stack]c. one during evaluation [int stack]for a and b above, you can use same array and same push, pop method as both ofthem are char. but for evaluation you have int stack and you might consider to createanother push pop method to handle it. maybe push_int, pop_int, etc. or find otherstrategy to utilize existing push pop method2. you can create a function for obtaining operator priority. that function should take anoperator as input and return its priority as an integer. this function will you a lot andreduce repeated code3. during evaluation you will need to convert char into integer. example for single digit: char c = '5'; int x = c - '0';

Under which key category do the page up and page down keys fall? page up and page down keys fall under the keys category.

What is used to analyze and summarize your data without graphical support