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A)
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they acted as a barrier to further settlement to the west
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Well, I don't see any options
But the Best answer for this is questions:
People no longer depended only on hunting and trying to gather up food.
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Early civilizations were ancient and did not
have great technologies and the knowledge and help the early colonists of the
Americas got from the Europeans.
Here
are plenty of reasons that could justify referring to these civilizations as
distinct from other peoples. What really distinguishes the Aztecs, the Mayans,
the Apachee tribes and others, from the rest of the world, is that they were
confined within an area that kept them from interacting with the Europeans, the
Asians, and the Africans, and thus spreading their culture there. That led to
the isolation of the people in the Americas, resulting to their civilizations
being seemingly 'prehistoric'. What I mean by that is that they couldn't have
access to materials that would in turn allow them to use more advanced
technology. While they did have plenty of chocolate, there are other things
that they definitely lacked, and as such we can see that their weapons were
inadequate, and in comparison to those of the Europeans, they were petty. It's
also noteworthy that there were no longer horses in the Americas, seeing as
they had all died out. The first horse that arrived in the continent, after a
long time, belonged to the Spanish armada. This is the most significant reason
as to how the civilizations in America were different than those in the rest of
the world. While I can name other reasons, such as distinctly different
architecture, different cuisine, way of life, etc., these are not as noteworthy
as the previous reasons that I named.
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The answer is D. It provided a source of transportation for goods and people
<span> x =(-78+√6144)/2=-39+16√<span> 6 </span>= 0.192
</span>Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
<span> (x^2+78*x)^1/5-(3)=0
</span><span> x2 + 78x
Simplify ————————
5
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Pull out like factors :
<span> x2 + 78x</span> = x • (x + 78)
<span>x • (x + 78)
———————————— - 3 = 0
5 </span>
