Answer:
Correct answer is D
Explanation:
open is a function in c++ programming language used to interact with files.The function takes two parameters as input
- File name
- mode
File Name
File name is a string name of file to be opened.This is a compulsory parameter for open method.
Mode
Mode is an optional parameter in open function.Following are the accepted values of mode parameter
Prefix ios:: is added to start of each
- in (Open file in input mode for writing data to file)
- out (Open file in output / read-only mode to read data from file)
- binary (Open file in binary format)
- ate (Set the starting point of file to the end of file. Default starting point of file is start of file)
- "trunc" (If file is opened multiple times all previous data is replaced with new data)
- app (All operations of output are performed the end of file)
Use | operator to use multiple modes at a time.
Answer:
C
Explanation: This is because not every area is structured on the same ground as other places.
Answer:
Shows the programming checking if num1 is greater than num2
Explanation:
So num1 and num2 are inputs
for you to code this you would need to put
num1=int(input("What is your first number? ))
and the same for num2 except change num1 for num 2 and first for second
When the input is completed, the computer will check if num 1 is greater than num2
it will do this by using a code something like:
if num1>num2:
Print("Your first input was greater than your second")
But in this example if it greater it just ends
But if it was less than you would put
if num1>num2:
Print("Your first input was greater than your second")
elif num1<num2:
Print("Your first input is less than your second")
So basically this code shows the computer checking if one number is greater than the other or not
Answer:
Aqueous carbon dioxide, CO2 (aq), reacts with water forming carbonic acid, H2CO3 (aq). Carbonic acid may loose protons to form bicarbonate, HCO3- , and carbonate, CO32-. In this case the proton is liberated to the water, decreasing pH. The complex chemical equilibria are described using two acid equilibrium equations.
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