Answer:
A) database
Explanation:
A database is used by people to help keep track on things
Answer:
Keyboard,speaker,scanner,mouse,printer and monitor
Explanation:
In computing, an input device is a piece of equipment used to provide data and control signals to an information processing system such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, cameras, joysticks, and microphones.
Answer: True
Explanation:
System development is the process in which a system is developed,planned, designed,tested, modified etc. Analysis of design,internal structure and external factors is done for implementation to creation of system.
- An IT professional is responsible for performing various tasks in system development.He/she has to analyze and detect that the developed system is convenient for user.
- Involvement of user also plays an important part in system development through various ways such as improvement in system, smooth implementation,innovation,enhancing quality etc.
- So, user can be involved in official or unofficial manner for betterment of system development.
- Thus, the given statement is true.
5 ( x + 4 ) = 4 ( x - 6)
5x + 20 = 4x - 24
5x -4x + 20= 4x - 4x - 24
1x + 20 = -24
1x + 20 - 20 = -24 - 20
1x = -44
check
5 (-44 + 4) = 4 ( -44 - 6)
5 (-40) = 4 (-50)
-200 = -200
