Not sure what you mean by "it gives me two blanks," but maybe they're looking for the vector components of the distance? In which case put a 0 in the first blank and a 10 in the second blank?
10 is the correct answer as sqrt(1) = 1
They are at the same X coordinate - add 7 to the Y of each 5,0 and 5,10. 10 as an answer seems good to me - what did the book/machine say 11?
It is 10 with the coordinates you gave.
Are you sure you have the right signs on all the x and y points?
10 is right answer.
I'm trying to figure out the distance between (5,-7) and (5,3), I get 10 but says I'm wrong?