If the angle $\mathrm{\theta }$ between the vectors $\overrightarrow{\mathrm{a}} = 2 {\mathrm{x}}^2 \overrightarrow{\mathrm{i}} + 4 \mathrm{x}\overrightarrow{\mathrm{j}} + \overrightarrow{\mathrm{k}}$ and $\overrightarrow{\mathrm{b}} = 7 \overrightarrow{\mathrm{i}} - 2 \overrightarrow{\mathrm{j}} + \mathrm{x}\overrightarrow{\mathrm{k}}$ is such that ${90}^0 < \mathrm{\theta } < {180}^0$ then x lies in the interval