Perform the Operations and Simplify $\left[ \frac { x ^ { 2 } } { 9 } \cdot \frac { 3 ( x + 4 ) } { x ^ { 2 } + 7 x } \right] \div \frac { x } { x + 7 }$

question 128

Multiple Choice

Perform the operations and simplify. $\left[ \frac { x ^ { 2 } } { 9 } \cdot \frac { 3 ( x + 4 ) } { x ^ { 2 } + 7 x } \right] \div \frac { x } { x + 7 }$

• A) \(\frac { x ^ { 2 } ( x + 4 ) } { 3 ( x + 7 ) ^ { 2 } } , x \neq - 3 , x \neq 0\)
• B) \(\frac { x + 7 } { 4 x } , x \neq - 4 , x \neq 0\)
• C) \(\frac { x ^ { 2 } ( x + 4 ) } { x + 7 } , x \neq 0 , x \neq 3\)
• D) \(\frac { x + 4 } { 3 } , x \neq - 7 , x \neq 0\)
• E) \(\frac { 4 ( x + 7 ) } { 21 } , x \neq 0 , x \neq 4\)

Recognize the importance of catalysts in the early history of life and modern cellular metabolism.

Comprehend the central role of RNA in the origin and evolution of life.

Identify the conditions that might have favored the polymerization of biomolecules on early Earth.

Understand the experimental evidence supporting various hypotheses about the origin of life.

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Definitions:

Attained Goal

An objective or target that has been successfully achieved.

Effort

The amount of energy, time, or resources expended towards achieving a goal or completing a task.

External Justification

Refers to reasons or explanations provided for a person's behavior that lie outside the individual, often used to explain actions that contradict one's own beliefs or values.

Cognitive Dissonance

The psychological unease felt by someone who simultaneously maintains two or more conflicting beliefs, ideas, or values.