<span>x^2+8x-20=0
Factor the left side of the equation
</span><span><span>(x−2)</span><span>(x+10)</span></span>=<span>0
</span>
Set the factors to both equal the number 0
<span><span>x−2</span>=<span><span><span>0
and/or
</span>x</span>+10</span></span>=<span>0
</span>x = 2 and/or x = -10
Answer:
(A) It connects Western and Central Europe.
(C) It is an important trade route.
(D) It is used for transportation.
Explanation:
The Danube is a river in central Europe and the second longest in this continent (the first is the Volga), which flows mainly through ten countries (Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Romania, Bulgaria, Moldova and Ukraine) to finally flow into the Black Sea.
This river is of great importance for Eastern Europe because its channel serves as an international bridge for agricultural, fishing, tourism, commercial and industrial activities. In addition, the majority of the population that lives in its vicinity, depends on the water of the Danube to carry out its activities, which is why there is a large number of reservoirs and dams on its way.
Another important aspect is that the Danube has a high economic potential, due to its capacities for transport, commerce and tourism, so the use and use of its waters has been promoted.
It would sometimes signify the unity of two separate kingdoms
Answer:
C.
Explanation:
Indus river valley and Ganges river valley were two important valleys that helped civilization to flourish. The two cities that flourished on Indus river valley were Harappa and Mohenjo-Daro. The Ganges valley paved the way for the Aryans to flourish.
The statement which is not correct concerning the Indus and Ganges rivers is that these river systems reduced trade. Instead, the people in Indus and Ganges river valley were dependent on trade. The Indus river valley traded with various civilizations such as Persia, Mesopotamia and China. Whereas, the Ganges river systems were vital for river-based trade.
Therefore, option C is correct.
