Expression 6: left parenthesis, "x" plus 20 , right parenthesis squared plus left parenthesis, "y" minus 3.5 , right parenthesis squared equals 3.5 squared left brace, "x" less than negative 20 , right brace left brace, "y" less than 3.5 , right bracex+202+y−3.52=3.52x<−20y<3.5
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Expression 7: left parenthesis, "x" plus 20 , right parenthesis squared plus left parenthesis, "y" minus 18.5 , right parenthesis squared less than or equal to 11.5 squared left brace, "x" greater than negative 20 left brace, "y" greater than 18.5 left brace, left parenthesis, "x" plus 20 , right parenthesis squared plus left parenthesis, "y" minus 18.5 , right parenthesis squared greater than or equal to 3.5 squared , right brace , right brace , right bracex+202+y−18.52≤11.52x>−20y>18.5x+202+y−18.52≥3.52
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Expression 8: left parenthesis, "x" plus 20 , right parenthesis squared plus left parenthesis, "y" minus 18.5 , right parenthesis squared equals 3.5 squared left brace, "y" greater than 18.5 left brace, "x" greater than negative 20 , right brace , right bracex+202+y−18.52=3.52y>18.5x>−20
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Expression 9: left parenthesis, "x" plus 27.4 7 , right parenthesis squared plus left parenthesis, "y" minus 3 , right parenthesis squared less than or equal to 4 squared left brace, "y" greater than 3.5 , right bracex+27.472+y−32≤42y>3.5
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Expression 10: left parenthesis, "x" plus 12.5 , right parenthesis squared plus left parenthesis, "y" minus 18.5 , right parenthesis squared less than or equal to 4 squared left brace, "y" less than 18.5 , right bracex+12.52+y−18.52≤42y<18.5