Answer:
Explanation:
The answer is C.
He may have made a contribution to D. There are over 360 different proofs for the Pythagorean theorem but that would not be his major contribution.
B may also be true, but if it is, he is not noted for it.
A not the Chinese system.
His main contribution was in the solution of equations like
y = 2x^2 + 20x + 12 = 2(x^2 + 10x + 25) - 12 = 2(x + 5) - 62 (completing the square) which we teach in the lower grades now, but when you learn something about the number system used, you realize that any contribution is remarkable.
The want of natural resourse sometimes resulted in colflict because sometimes there wouldn't be much to trade and it was needed greatly so it would result in more of a desperate time for resources. Trade was one of the first bridges between New England colonists and local Native American populations. ... The Native Americans provided skins, hides, food, knowledge, and other crucial materials and supplies, while the settlers traded beads and other types of currency (also known as “wampum”) in exchange for these goods.
Hope that helped
I believe the answer you're looking for is VETO.
A Veto is a constitutional right to reject a decision.
-Seth