<u>Answer:</u>
(A) Studying algebraic equations in math.
This was made possible by contributions of Islamic civilizations
<u>Explanation:</u>
“Muslim scholars” contributed largely in the field of Mathematics in the golden age of Islamic civilization. “Arabic number system” is widely used even today.
The first great achievement was introduction of ‘’Arabic numerals’’. It explains the "place-value" theory, which allows numbers to be expressed by “nine figures” and zero. This development made calculation very simple and also paved the way for the development of a completely new division of mathematics which is “algebra”. Even Arabic words entered Western vocabulary like “Al-JABR” became “Algebra”.
On two levels, then, Washington Irving profoundly influenced the American Christmas. His melding of jolly St. Nick and an English commemoration of old into a wintry celebration of nostalgia attests to the rich cultural legacy bequeathed to us by this native New Yorker..
Answer:
D. Lower birthrate
Explanation:
The graph shows more old people than young people which is most easily explained by lower birth rates.
This might be confusing because of the Black plague but that was only between 1346-1353
hope this helps :)
The industrial revolution included the make of coal trains, improvements on travel in cities and better banking system
Answer:
A: China and South Africa
Explanation:
During the 1980's, America attempted to prevent the spread of communism to China and South Africa.