***Correction: <em>Options of the question have mistakes in them. The correct options are given in the comment section under the question above</em>***
Answer:
The correct answer is Option (1) three_com
Explanation:
There are a few rules you need to keep in mind while naming any variable, which are as follows:
- The first letter of any variable name should be either a letter of an alphabet or an underscore. For example, helloWorld or _helloWorld.
- No special characters (except underscore obviously) or spaces in between the name are allowed. For example, <em>hello&world</em> or <em>hello world</em> are not valid names.
- The first letter of the variable name should not be a number.
Now look at all the options given:
Option-1 (three_com): The name starts with the letter <em>t</em> of an alphabet and there are no spaces or special characters in it except an <em>underscore</em> (which is acceptable). Therefore, this option is correct.
Option-2 (3com): The name starts with a number. Not allowed.
Option-3 (3_com): The name starts with a number. Not allowed.
Option-4 (ampersand&): The name has a special character <em>&</em> in it, which is not allowed as per the aforementioned rules.
Hence, the correct answer is option (1) <em>three_com</em>.
Answer:
False.
Explanation:
Web Accessibility Initiative (WAI) brings together people from industry, disability organizations, government, and research labs from around the world to develop guidelines and resources to help make the Web accessible to people with disabilities including auditory, cognitive, neurological, physical, speech, and visual disabilities.
It is one of the features of the World Wide Web Consortium (W3C) develiped in 1997 and is aimed at developing standards and support materials to assist in understanding and implementing accessibility for users with disabilities.
Answer:
The length of the ladder should be 277.85 meters long
Explanation:
Great question, it is always good to ask away and get rid of any doubts that you may be having.
I have created an illustration and attached it as a photo below to better help you understand the situation. As seen on the illustration the difference in height of Building B from Building A is,

Now that we have the difference we need to find the length of the ladder which is the hypotenuse between the two buildings. We can calculate this by using the Pythagorean theorem which is the following

Now we can plug in the values and solve for the hypotenuse (h)


... square root of 77,200
.... rounded up
Therefore, the length of the ladder should be 277.85 meters long
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
Answer:
A GUI based operating system is usually used in personal computers
Explanation:
The three most common operating systems for personal computers are Microsoft Windows, macOS, and Linux. Modern operating systems use a graphical user interface, or GUI (pronounced gooey).