Mckenzie Simpson

08/07/2023 · Primary School

\begin{tabular}{l} (1 point) A coal-burning electrical generating plant \\ emits sulfur dioxide into the surrounding air. The \\ concentration \( C(x) \), in parts per million, is \\ approximately given by the function \\ \( \qquad C(x)=\frac{0.9}{x^{2}} \) \\ where \( x \) is the distance away from the plant in \\ miles. \\ The instantaneous rate of change of the sulfur \\ dioxide concentration: \\ (A) 4 miles from the plant = \\ \hline\end{tabular}