Answer:
al-Khawarzmi.
Explanation:
Muhammad ibn Musa al-Khawarzmi born in c. 780 in Khwarezm, was known to be a famous Persian polymath with great works in various fields such as geography, astronomy and mathematics. One of the notable position held by al-Khawarzmi is being appointed as head of the library of the House of Wisdom in Baghdad, Iraq.
Basically, in his work titled "The Compendious Book on Calculation by Completion and Balancing" he introduced the first solution to linear and quadratic equation by using the completing the square method. Consequently, he is considered to be the father of algebra based on the introduction of the reduction and balancing methods for solving algebraic equations.
Hence, al-Khawarzmi was the Muslim to form the concept of algebra with respect to his book titled "Hisab Al-jabr w'al-muqabala."
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With U.S. aid, Salvador Allende of Chile was replaced by military dictator
Augusto Pinochet.
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It convinced France to help the colonies in their struggle
Explanation:
- Burgoyne's quest to cut off New England from the southern colonies began well, but was slowed down by logistical problems.
- Burgoyne won a small tactical victory over General Gates and the Continental Army at the battle of Freeman's Farm on September 19 with considerable losses.
- His gains were nullified when he was attacked again on October 7 by the Americans at the Battle of Bemis Heights and captured part of the British defense system.
- Burgoyne was therefore forced to retreat, and his army was surrounded by a much larger US army near Saratoga, forcing him to surrender on October 17th.
- News of Burgoyne's surrender was the reason for France to formally enter the war as an ally of the Americans, though it had previously provided supplies, ammunition and cannon.
- The official involvement of France turned this war into a world war. This battle also resulted in the Spanish contribution to the war on the US side.
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Homelessness followed quickly from joblessness once the economy began to crumble. Homeowners lost their property when they could not pay mortgages. During the Great Depression there were 2 million people homeless.
