Tutor profile: Shahryar T.
Subject: Computer Science (General)
What is an Operating System?
Operating System (OS) is software that manages all the programs that the computer is capable to run. It acts as a middle layer between hardware and software. For example, if a an application needs to print(hardware) a document, the OS will communicate with the printer to make it happen.
Which environments do bacteria live in?
Bacteria can be found in various environments all over the planet. There are bacteria in the air, in freshwater, on the surface, on the bottom of the sea, in soil, on our skin, and practically in all environments on the planet in which air circulates freely. Some bacteria can be found in volcanic craters under extremely high temperatures.
Simplify (x^4 /x^3)^2
The equation can be simplified in the following steps: 1. Since the variable x is same in both numerator and denominator, we will take x as a common variable and subtract the powers (4-3) (x^4-3)^2 = x^2 2. x squared is the answer