Answer:
(4, 3)
Explanation:
<u>Short answer</u>: when the coordinates are on horizontal and vertical lines, as these are, each coordinate value is used twice. Already, x=0 is used twice, as is y=0, so the missing coordinate is x=4, y=3.
The fourth vertex is (4, 3).
_____
<u>Longer answer</u>: The midpoints of the diagonals are the same point, so for rectangle ABCD, we have ...
(A+C)/2 = (B+D)/2
Solving for D, we find ...
D = A +C -B
In clockwise order, the points given are ...
A = (4, 0), B = (0, 0), C = (0, 3)
so we have ...
D = (4, 0) +(0, 3) -(0, 0) = (4+0-0, 0+3-0)
D = (4, 3) . . . . the coordinates of the fourth vertex.
Middle class P.................
Initially, people's believe about the ocean floor was that it is mostly flat, and that it has little to no distinguishing features. This was proven wrong when sonar was used to map the ocean floor by <span>German scientists in the early </span>20th century, and they observed that the ocean floor is varied and it showcases such distinguishing features as atolls, submarine canyons, and mid-ocean ridges.
The United States of America
