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The zero is 6 1/3
The correct option is C
Explanation:The zero of the given quadratic expression is obtained by solving the below equation:
[tex]\begin{gathered} 9x^2-54x-19=0 \\ (3x-19)(3x+1)=0 \\ 3x-19=0 \\ \Rightarrow x=\frac{19}{3}=6\frac{1}{3} \\ \\ 3x+1=0 \\ \Rightarrow x=-\frac{1}{3} \end{gathered}[/tex]From the given options, the zero is 6 1/3