Answer:
-4
Step-by-step explanation:
look at the screenshot
If x orignial price than 60/100*x=80/100*(x-40) and selling price =60/100*x=96
Answer:
no.
Step-by-step explanation:
since 2 of the sides are much longer than the shorter sides, diagonals of a rectangle will not intersect at a right angle (perpendicular) whereas a square, with all sides equal, would. This is because the distance from the center to each of the corners is the same for each corner.
Answer:

Step-by-step explanation:
After travelling two hours, the two cruise ships form a triangle. One of the legs of this triangle will be the distance Cruise A travelled, and another will be the distance Cruise B travelled. We can find the distance they travel using:

Cruise A is travelling at 18 miles per hour for 2 hours. Therefore, Cruise A has travelled:

Cruise B is travelling at 15 miles per hour for 2 hours. Therefore, Cruise B has travelled:

Because we are given the angle between these legs, we can use the Law of Cosines to find the third leg. The Law of Cosines is given by:
, where
,
, and
are interchangeable. Let
represent the distance between the two cruises. We have:
(one significant figure).