The 14th and 15th amendments granted African Americans the right to vote, equality before the law and other rights of citizenship
C and D are correct, but I believe the answer that its looking for is D.
please mark as brainliest?
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.
Answer The fear of being alone
Explanation:
