Answer:
if (x > 7 && Math.sqrt(x) < 3)
Explanation:
The previous condition checks if the square root of x is less than 3, but this would raise an error if x is a value equal to or less than 0.
So, the condition checks for the value of x before evaluating the square root after the AND operation to prevent an arithmetic exception.
Answer: Alternative key
Explanation:
The alternative key is the type of shortcut key in the keyboard that allow the users for selecting the control or shift key. It is also considered as the modifier key. For using the alternative key we must ensure that the lock num is ON in the keyboard.
The alternate key is basically provide the various alternative input and the operation. The short name of the alternate key in the keyboard is denoted as "Alt key". The function of the alternative key may vary from one application to another.
Answer:
b. Play music
Explanation:
Digital technology helps improve an existing process and makes things better. In this scenario of an MP3 player, digital technology takes care of music. Before a portable MP3 player came into the picture, people had to carry large physical records or multiple CD packs but now, a small device can hold thousands of those same songs in it.
Answer: Systems design
Explanation: SDLC(Systems Development Life Cycle) is the cycle that is responsible for the development of the system including several phases related to it.
The system design phase in SDLC works with the physical or hardware units and the logical reports to make a design interface. This phase makes the requirements of the cycle into design and present it for the analysis so that it can test the efficiency of it.
True............................I think
