PLEASE ANSWERR THANK YOUU IT WOULD BE REALLY APPRECIATED when is the statement "the quotient of a nonzero integer and its opposite is -1" true?

This is like asking x/-x = -1, where x∈N.

No matter what number you choose that is a nonzero number, negative or positive when divided by its negated self will always be -1. Therefore this statement is always true.

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.

- (2, -7)

- lines r and s and lines t and u must be parallel