No, the word "predetermine" is one word.
no
They had to try to predetermine how many people would choose the new product.
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.
nope
No. The word is "pinpoint".
No, the word "coordinator" is one word.
No the word "midday" is not hyphenated.
The word "desperate" doesn't need a hyphen.
choose predetermine
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.