What were the first crops grown in the Americas?

How did Cro-Magnon’s new tools make survival easier?

What was the impact of new crops and livestock in the Americas?

What were the origins of the Cold War?

Between which two consecutive whole numbers is

$$\sqrt { 89 }$$

?

Find the slope of the line represented by each equation. First find two points that lie on the line. Then find the rate of change or slope. y = 4 - 9x

Why was the introduction of corn and potatoes to Europe and Asia so significant?

Subtract and then simplify, if possible.

$$\frac { 9 x } { x ^ { 2 } - 1 } - \frac { 9 } { x ^ { 2 } - 1 }$$

Let $R$ be an integral domain. Prove that every finitely generated torsion $R$ -module has a nonzero annihilator i.e., there is a nonzero element $r \in R$ such that $r m=0$ for all $m \in M$ $-$ here $r$ does not depend on $m($ the annihilator of a module was defined in Exercise 9 of Section $1 ) .$ Give an example of a torsion $R$ -module whose annihilator is the zero ideal.

How is a chemical change different from a physical change?

Calculate $\int e^{2x}dx$

What were some of the first crops to be domesticated during the Agricultural Revolution?

Which advance by a hominid group do you think was the most significant? Explain.

For each term or name, write a sentence explaining its significance. •nomad •hunter-gatherer •Neolithic Revolution •slash-and-burn farming •domestication