The Value of U $C ( t ) = 3 t ^ { 2 } - 7 t + 50$

question 65

Multiple Choice

The value of U.S. trade with China from 1994 through 2002 can be approximated by $C ( t ) = 3 t ^ { 2 } - 7 t + 50$ billion dollars (t is time in years since 1994) .
Find an appropriate domain of C.

• A) \([ 0 , + \infty ]\)
• B) \([ 1994,2002 ]\)
• C) \([ 1994 , + \infty ]\)
• D) \([ 0,8 ]\)
• E) \([ 8 , + \infty ]\)

---

Definitions:

Rising Inflection

An increase in pitch or tone of the voice towards the end of a sentence, often indicating a question or increasing emphasis.

Singsong Pattern

A fluctuating, musical way of speaking that can be rhythmic or repetitive, often used for effect or to capture attention.

Affiliation

The association or connection of an individual or organization with another, typically reflecting a relationship of cooperation or membership.

Explanation

Explanation is the process of making something clear or easy to understand by describing or giving details about it.