No, "mid-morning" is typically written with a hyphen when used as a compound adjective before a noun, such as "mid-morning snack." However, when used as a noun on its own, it is often written without a hyphen, as in "We will meet in the mid morning." Always check style guides for specific preferences.
The hyphen would be located between the mid and the century.'Mid-century'.
Yes, mid is not a word in itself, but acts as a prefix and so must be connected to the word following it, usually with a hyphen (although there are exceptions such as midday)
It does not need to have a hyphen! :)
No, "midnight" should not be spelled with a hyphen. The correct spelling is "midnight," which is a single word. Hyphenation is not needed as "mid" and "night" combine to form a specific time of day.
No, the word "nineteen" does not need a hyphen when written numerically.
No
Yes, "mid-forties" should be hyphenated. The hyphen helps clarify that "mid" modifies "forties" as a single concept, indicating the range of ages from approximately 43 to 47. Without the hyphen, the meaning could be less clear.
It's not a word in the dictionary, so yes, use the hyphen.
I do not believe that multitasking is supposed to have a hyphen.
You typically need only capitalize after sentence-ending punctuation, which a hyphen is not.
no