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 clause of the treaty of versailles in particular left the germans feeling like they were “stabbed in the back? ” by the victors?

How does the supremacy clause of the u.s. constitution affect the states? o a. it requires each state to establish a supreme court. b. it declares that the federal government can take away state powers if necessary. o c. it allows state governments to overthrow the federal government if necessary. o d. it ensures that the u.s. constitution overrules each state constitution

Which of the following is not located along the national road? a. cumberland, maryland. b. buffalo, new york. c. wheeling west virginia. d. vandalia, illinois.