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

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) $[ 8 , + \infty ]$

Correct Answer:

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