Expression 13: "y" equals negative StartFraction, left parenthesis, StartNestedFraction, 1 NestedOver 500 , EndNestedFraction left parenthesis, "x" to the 4th power , right parenthesis , right parenthesis Over left parenthesis, left brace, "x" greater than 6.5 9 , right brace , right parenthesis left parenthesis, left brace, "x" less than 8.1 9 , right brace , right parenthesis , EndFraction plus 13y=−1500x4x>6.59x<8.19+13
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Expression 14: StartRoot, left parenthesis, 1 squared minus left parenthesis, "x" minus .5 , right parenthesis squared , right parenthesis , EndRoot plus 112−x−.52+1
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Expression 15: negative StartRoot, left parenthesis, 1 squared minus left parenthesis, "x" minus .5 , right parenthesis squared , right parenthesis , EndRoot plus 1−12−x−.52+1
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Expression 16: StartRoot, left parenthesis, 1 squared minus left parenthesis, "x" minus 6.5 , right parenthesis squared , right parenthesis , EndRoot plus 112−x−6.52+1
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Expression 17: negative StartRoot, left parenthesis, 1 squared minus left parenthesis, "x" minus 6.5 , right parenthesis squared , right parenthesis , EndRoot plus 1−12−x−6.52+1
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Expression 18: StartFraction, sin left parenthesis, "x" , right parenthesis Over left parenthesis, left brace, "x" greater than 0 , right brace , right parenthesis left parenthesis, left brace, "x" less than 7.5 , right brace , right parenthesis , EndFraction minus 10sinxx>0x<7.5−10
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Expression 19: StartFraction, .6sec left parenthesis, "x" plus 5 , right parenthesis Over left parenthesis, left brace, "x" greater than negative 3.2 3 , right brace , right parenthesis left parenthesis, left brace, "x" less than negative .5 , right brace , right parenthesis , EndFraction plus 14.6secx+5x>−3.23x<−.5+14
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Expression 20: StartFraction, .6sec left parenthesis, "x" plus 9 , right parenthesis Over left parenthesis, left brace, "x" greater than negative .9 6 , right brace , right parenthesis left parenthesis, left brace, "x" less than 1.8 , right brace , right parenthesis , EndFraction plus 14.6secx+9x>−.96x<1.8+14
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Expression 21: StartRoot, StartFraction, left parenthesis, 6 squared minus left parenthesis, "x" minus 2.9 , right parenthesis squared , right parenthesis Over left parenthesis, left brace, "x" less than 8.1 , right brace , right parenthesis , EndFraction , EndRoot minus 1162−x−2.92x<8.1−11
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Expression 22: negative StartRoot, StartFraction, left parenthesis, 5 squared minus left parenthesis, "x" minus 1.9 , right parenthesis squared , right parenthesis Over left parenthesis, left brace, "x" less than 6.8 , right brace , right parenthesis , EndFraction , EndRoot minus 11−52−x−1.92x<6.8−11
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Expression 23: StartRoot, StartFraction, left parenthesis, 3 minus left parenthesis, "x" minus 6.9 , right parenthesis squared , right parenthesis Over left parenthesis, left brace, "x" greater than 7.9 , right brace , right parenthesis , EndFraction , EndRoot minus 9.43−x−6.92x>7.9−9.4
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Expression 24: negative StartRoot, StartFraction, left parenthesis, 5.4 minus left parenthesis, "x" minus 6 , right parenthesis squared , right parenthesis Over left parenthesis, left brace, "x" greater than 6.9 , right brace , right parenthesis , EndFraction , EndRoot minus 9.9−5.4−x−62x>6.9−9.9
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Expression 25: "x" minus StartFraction, 18 Over left parenthesis, left brace, "x" greater than 8 , right brace , right parenthesis left parenthesis, left brace, "x" less than 8.7 , right brace , right parenthesis , EndFractionx−18x>8x<8.7