Answer: Twice
Explanation: With quadratic functions they are usually represented by parabolas and they can cross the x axis only once or twice :)
Answer:
my answer would be BB.The heliocentric model was finally accepted because it best explains solar eclipses.
Danube River is the second biggest river in Europe, And carries cargo. That is why.
Long day typically means warmer days short days typically means colder days
Explanation:
urban areas are mostly characterised by high population advanced technology and basic amenities. The population helps to increase productivity which leads to economic development, employment opportunities that promotes increase in standard of living which in turn helps economic development.