The First Crusade is initiated when Byzantine Emperor Alexius Comnenus requests help in reconquering from the Seljuk Turks the lost territory of Asia Minor . Pope Urban II at the Council of Clermont calls upon the princes of Christendom for an armed “pilgrimage” to recover Jerusalem from the Muslims.
Alfred Nobel is best known for his invention of dynamite and an explosive device called a blasting cap
Answer:
the equation for a circle with center (5, -1) and radius of 4 is;
(x-5)²+(y+1)²=16
so its d.