No, the word "coordinator" is one word.
A hyphen isn't necessary in "coordinator"
no
No, the word "nineteen" does not need a hyphen when written numerically.
It's not a word in the dictionary, so yes, use the hyphen.
It may be spelled coordinator or co-ordinator.Coordinator is more common in use.
nope
No. The word is "pinpoint".
No, the word "predetermine" is one word.
No the word "midday" is not hyphenated.
The word "desperate" doesn't need a hyphen.
Yes, in-home does need a hyphen. It's two words put together to form a word for a different concept.
Yes it should be hyphenated.