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Question $6$

P $(-1\mathrm{.}44$ Z $<mtext\; id="EditorElement\_1294978"></mtext><mn\; id="EditorElement\_1294979">2</mn><mn\; id="EditorElement\_1294980">.</mn><mn\; id="EditorElement\_1294981">7</mn><mn\; id="EditorElement\_1294982">5</mn><mi\; id="EditorElement\_1294983">)</mi>$