What contribution did al-khwarizmi make to the world of mathematics?

a.
he developed the formula and process used to make persian rugs.

b.
his work became the basis for algebra.

c.
he created the number system based on chinese number system.

d.
he determined the formula for finding the hypotenuse of a right triangle.

What project establish leonardo da vincis reputation as a creative and talented engineer

By the late 1930s, how were u. s. officials beginning to view japanese policies of expansion? a. they attempted to join forces with japan so as to increase u. s. territory. b. they warned them to stop expansionist actions or face potential u. s. intervention. c. they sent representatives to japan to work out territorial rights in a diplomatic fashion. d. they became fearful of their military power

President nixon resigned from office in 1974 after he was informed that the senate would impeach him, as allowed in the constitution, for his actions in the watergate scandal. one of the key reasons that nixon’s actions became public was a) the freedom of press guaranteed by the first amendment. b) the right to confront witnesses as guaranteed by the sixth amendment. c) the limitation of judicial powers as defined in article 3 of the constitution. d) the prohibition against illegal search and seizure as guaranteed by the fourth amendment.