The Four Corners Region

question 55

Multiple Choice

The Four Corners region

• A)was gifted with several navigable rivers.
• B)was arid and required large-scale irrigation.
• C)became wetter with increased rains in the middle of the twelfth century.
• D)saw dramatic population increases during the twelfth century.

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Definitions:

Conjugate

A binomial formed by changing the sign of the second term of another binomial, commonly used to rationalize denominators.

Expression

A combination of symbols, numbers, and operations (such as addition and multiplication) that represent a mathematical object or quantity.

Simplify

To reduce a complex mathematical expression or equation to a simpler form by performing operations and combining like terms.

Expression

In mathematics, an arrangement of numbers, symbols, and operators (such as + and ×) that represents a quantity or procedure. Expressions do not have equality signs.