Expression 18: left parenthesis, "y" minus 90 , right parenthesis squared equals 30 left parenthesis, "x" plus 120 , right parenthesis left brace, "y" greater than or equal to 75.5 1 , right brace left brace, "y" less than or equal to 103.4 2 , right bracey−902=30x+120y≥75.51y≤103.42
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Expression 19: left parenthesis, "y" minus 90 , right parenthesis squared equals negative 30 left parenthesis, "x" minus 120 , right parenthesis left brace, "y" greater than or equal to 75.5 1 , right brace left brace, "y" less than or equal to 103.4 2 , right bracey−902=−30x−120y≥75.51y≤103.42
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Expression 20: StartFraction, left parenthesis, "x" , right parenthesis squared Over 130 squared , EndFraction plus StartFraction, left parenthesis, "y" plus 140 , right parenthesis squared Over 90 squared , EndFraction equals 1 left brace, "y" less than or equal to negative 52.9 , right bracex21302+y+1402902=1y≤−52.9
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Expression 21: "y" equals 40log Subscript, 5 , Baseline left parenthesis, negative left parenthesis, "x" plus 109.3 , right parenthesis , right parenthesis minus 100 left brace, "y" less than or equal to negative 36 , right brace left brace, "y" greater than or equal to negative 93.4 8 , right bracey=40log5−x+109.3−100y≤−36y≥−93.48
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Expression 22: "y" equals 40log Subscript, 5 , Baseline left parenthesis, "x" minus 109.3 , right parenthesis minus 100 left brace, "y" less than or equal to negative 36 , right brace left brace, "y" greater than or equal to negative 93.4 8 , right bracey=40log5x−109.3−100y≤−36y≥−93.48
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Expression 23: StartFraction, left parenthesis, "x" plus 130 , right parenthesis squared Over 30 squared , EndFraction plus StartFraction, left parenthesis, "y" plus 20 , right parenthesis squared Over 45 squared , EndFraction equals 1 left brace, "x" less than or equal to negative 114 , right bracex+1302302+y+202452=1x≤−114
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Expression 24: StartFraction, left parenthesis, "x" minus 130 , right parenthesis squared Over 30 squared , EndFraction plus StartFraction, left parenthesis, "y" plus 20 , right parenthesis squared Over 45 squared , EndFraction equals 1 left brace, "x" greater than or equal to 114 , right bracex−1302302+y+202452=1x≥114
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Expression 25: equals StartRoot, negative left parenthesis, "x" , right parenthesis , EndRoot minus 150 left brace, "x" greater than or equal to negative 30 , right brace=−x−150x≥−30
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Expression 26: "y" equals StartRoot, left parenthesis, "x" , right parenthesis , EndRoot minus 150 left brace, "x" less than or equal to 30 , right bracey=x−150x≤30
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Expression 27: equals StartRoot, left parenthesis, "x" plus 60 , right parenthesis , EndRoot minus 150 left brace, "x" less than or equal to negative 30 , right brace=x+60−150x≤−30
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Expression 28: equals StartRoot, negative left parenthesis, "x" minus 60 , right parenthesis , EndRoot minus 150 left brace, "x" greater than or equal to 30 , right brace=−x−60−150x≥30
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Expression 29: "x" equals negative 60 left brace, "y" greater than or equal to negative 155 , right brace left brace, "y" less than or equal to negative 145 , right bracex=−60y≥−155y≤−145
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Expression 30: "x" equals 60 left brace, "y" greater than or equal to negative 155 , right brace left brace, "y" less than or equal to negative 145 , right bracex=60y≥−155y≤−145
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Expression 31: "y" equals negative 170 left brace, "x" less than or equal to 10 , right brace left brace, "x" greater than or equal to negative 10 , right bracey=−170x≤10x≥−10
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Expression 32: left parenthesis, "x" plus 70 , right parenthesis squared plus left parenthesis, "y" minus 50 , right parenthesis squared less than or equal to 5 squaredx+702+y−502≤52
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Expression 33: left parenthesis, "x" minus 70 , right parenthesis squared plus left parenthesis, "y" minus 50 , right parenthesis squared less than or equal to 5 squaredx−702+y−502≤52
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Expression 34: equals negative StartFraction, 1 Over 100 , EndFraction left parenthesis, "x" , right parenthesis squared plus 300 left brace, "y" greater than or equal to 266.9 , right brace=−1100x2+300y≥266.9
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Expression 35: "y" equals negative StartFraction, 1 Over 100 , EndFraction left parenthesis, "x" , right parenthesis squared plus 287 left brace, "y" greater than or equal to 272.9 , right bracey=−1100x2+287y≥272.9