Answer:
a) the roots are unequal.
b) the roots are irrational
c) the roots are non-real
2. 6 + 6x + 1 = 0
6x = 6+1
6x = 7
6x/6 = 7
x = 7/6
Answer:
It was a list of grievances against the king of England intended to justify separation from British rule. The Constitution was written and signed in 1787. It was a charter of government that came to be ratified by the states, and it continues to be the supreme law of the land.
Answer:
b. flat rotation curves in spiral galaxies
Explanation:
Dark matter accounts for majority of the matter in the universe (about 85%). It is considered to be composed of subatomic particles which are yet to be discovered. Dark matter cannot be observed because it does not emit light that can be detected. Only its gravitational effect is visible.
Astronomers when calculated the mass of the visible matter and tried to account for the observed speed of stars in the galaxy, there was a mismatch. To understand what caused this mismatch, astronomers gave name to the invisible matter as the Dark Matter.
The expected velocity of stars should decrease away from the near the center of the galaxy but a constant velocity of stars was observed that is a relatively flat rotation curve was obtained.
Thus, flat rotation curves in spiral galaxies in an evidence of Dark Matter.
Answer:
heres a ppt i had to do about global warming and greenhouse effect just check the global warming part
Explanation:
