When you want to add additional information. Example: A screeching noise came from the closet - a cry for help.
To indicate a sentence is unfinished.
You just did! I just saw the mailman dash around the corner.
If you meant "where would you put a comma in this sentence" then i would say "The gardener took the hose and the shovel, and began to plant the flowers" There is no dash (-) in the sentence, its a comma (,) which is needed. I hope that helped.
How would you use theory in a sentence
i'ts like a dash, for example- my favorite food is: pizza.
Whether it is technically correct to use both dashes and parentheses in the same sentence would depend on the structure of the sentence. On a practical level, however, that much punctuation might tend to confuse your readers.
you use a dash when your putting two different things together that u want to include in a sentence
Adding a dash of cooking oil to boiling water will prevent pasta from sticking together while cooking.
A half of a dash in a baking recipe would be a pinch (though I would use two pinches!).
She would have to dash over to the office and back home in less than ten minutes to make her appointment with the doctor.
Using a dash at the end of a sentence can be used to add emphasis to the information preceding it, but it is not commonly done. It is more typical to use other punctuation marks like commas or parentheses for this purpose.
I would use it correctly in a sentence, of course. Thank you for asking.