The Number of Research Articles in Physics Review That Were $A ( t ) = - 0.01 t ^ { 2 } + 0.24 t + 3.4$

question 73

Multiple Choice

The number of research articles in Physics Review that were written by researchers in the U.S. from 1983 through 1996 can be approximated by $A ( t ) = - 0.01 t ^ { 2 } + 0.24 t + 3.4$ billion dollars (t is time in years since 1983) .
Find an appropriate domain of A.

• A) \([ 0,13 ]\)
• B) \([ 1983 , + \infty ]\)
• C) \([ - \infty , 13 ]\)
• D) \([ - \infty , 0 ]\)
• E) \([ 1983,1996 ]\)

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