Answer:
LinkedIn is very safe
Explanation:
LinkedIn is very safe, that being said you should never post private information about yourself anywhere that you do not want others to see/know. LinkedIn is a job recruiting and networking site, meaning that all the information that you have or will be publishing there should be related to your career. There is no reason for you to publish private information such as document numbers, social security number, address, bank account info, etc.
Answer: B. Multi-user, multitasking.
Explanation:
Multiuser/Multitasking operating system refers to an operating system that's powerful and supports more than one user at a time, and can also perform more than one task at a time.
The operating system allows many users to use the programs which are running concurrently on a single network server. It is the computer operating system that would be best for a large corporation. An example is UNIX.
try:
num = int(input("Enter a number: "))
print(12*num)
except ValueError:
print("Please enter a number!")
I wrote my code in python 3.8
Answer:
X is in NP and Y is in NP-HARD ( A )
Explanation:
X is in NP and Y is in NP-HARD can be inferred from the previous statement made in the problem above because problem decision X can be in NP if it can BE reducible to a 3-SAT polynomial real time, if that can be achieved then 3SAT will be in NP since SAT is in NP as well.
also problem decision Y can be in NP-HARD if 3SAT can be reducible to it in polynomial time as well hence option A is the correct option