Answer:
When Scheme is a pure functional language, it cannot include the function DISPLAY. Since the pure functional languages will return the same value whenever the same expression is evaluated, and the DISPLAY would be the output and thus it cannot be part of the purely functional language. Thus in the pure functional language we can evaluate the expressions with the same arguments and it returns the same value since there is no state to change.
Explanation:
Answer:
Cell wall more selectively controls what goes in and out of the cell, it gives a plant cell its shape, is rigid.
Answer:
True.
Explanation:
A proxy server, for example, can hide the true origin of a request, thus, keeping your IP address private, and non-visible to the internet. However, this won't necessarily keep malicious attackers from reaching your network. A proxy simply acts as an intermediary between you, and the server you are trying to reach.
Firewalls or an Intrusion Detection Systems (IDS) are pieces of software specifically designed to keep attackers out of your system, they can analyze the web traffic and detect malware, or they can prevent the delivery of some packages, based on its content if the IDS consider it's malicious.
In psuedocode it would be:
length = input()
width = input()
area = length * width
print(area + " sq ft");
