Yes it is.
Yes, dialogue is typically less formal than the surrounding description and narrative. This is because dialogue is meant to capture the natural way people speak, including slang, contractions, and colloquialisms, while the description and narrative provide the setting and context for the dialogue.
A huge gap exists between private, informal dialogue and public, formal monologue
Dialogue is more likely to use slang. apex..
No, the phrase "hail from" is not considered archaic. It is still commonly used in modern English to mean to originate or come from a particular place or background.
Use I'll only informally, or in dialogue to represent speech. Do not use contractions in formal writing.
LEDGER,Report
transforming data to the right & formal avenue
If you are writing it for college it is formal essay, you may not use there slang or something. If for high-school, that'll be informal. Same for middle school.
Hill country is a formal region because it is a very hilly part of Texas and some of its surrounding places are affected by it.
There are several slang words that mean "no" (these should only be used in dialogue, not formal writing):NAHNAWNEGATORYNOONOPENO WAYUH-UHAIN'T (isn't)
The slang contraction c'mon should only be used in a direct quote or dialogue. Otherwise use the formal phrase come on.
No, formal mutual aid agreements are needed.
Country style furniture works very well in a formal dining setting as long as it matches with the surrounding decor.