Expression 5: "x" equals 48 left brace, negative 31 less than or equal to "y" less than or equal to 31 , right bracex=48−31≤y≤31
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Expression 6: "s" Subscript, "g" "n" , Baseline left parenthesis, negative 1 third StartRoot, 3 , EndRoot left parenthesis, "x" plus 38 , right parenthesis plus 40 , right parenthesis left brace, negative 38 less than or equal to "x" less than or equal to negative 30 , right bracesgn−133x+38+40−38≤x≤−30
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Expression 7: "s" Subscript, "g" "n" , Baseline left parenthesis, StartFraction, 1 Over 100 , EndFraction "x" squared minus 0.2 "x" plus 16 , right parenthesis left brace, negative 30 less than or equal to "x" less than 40 , right bracesgn1100x2−0.2x+16−30≤x<40
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Expression 8: "s" Subscript, "g" "n" , Baseline left parenthesis, StartFraction, 1 Over 100 , EndFraction left parenthesis, "x" plus 10 , right parenthesis squared minus 0.2 left parenthesis, "x" plus 10 , right parenthesis plus 16 , right parenthesis left brace, negative 30 less than or equal to "x" less than 40 , right bracesgn1100x+102−0.2x+10+16−30≤x<40
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Expression 9: "y" equals "s" Subscript, "g" "n" , Baseline 31 left brace, 40 less than or equal to "x" less than 48 , right bracey=sgn3140≤x<48