Expression 18: "M" equals StartFraction, 1 Over "b" , EndFraction times Start integral from 0 to "b" , end integral, "f" left parenthesis, "x" , right parenthesis "d" "x"M=1b·∫b0fxdx
equals=
31.1 6 7 5 6 4 6 7 4 431.1675646744
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Expression 19: StartFraction, 1 Over "b" , EndFraction times left parenthesis, "F" left parenthesis, "b" , right parenthesis minus "F" left parenthesis, 0 , right parenthesis , right parenthesis1b·Fb−F0
equals=
31.1 6 7 5 6 4 6 7 4 431.1675646744
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Expression 20: "F" left parenthesis, "x" , right parenthesis equals 80 times StartFraction, 0.9 5 4 8 Superscript, "x" , Baseline Over ln 0.9 5 4 8 , EndFractionFx=80·0.9548xln0.9548
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da ∫ ( k ^ x ) dx = ( k ^ x ) / ln k.
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Førstekoordinaten:
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Expression 23: "x" Subscript, 1 , Baseline equals StartFraction, ln left parenthesis, StartNestedFraction, "M" NestedOver 80 , EndNestedFraction , right parenthesis Over ln left parenthesis, 0.9 5 4 8 , right parenthesis , EndFractionx1=lnM80ln0.9548
equals=
20.3 8 0 1 0 1 5 6 9 120.3801015691
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viser, hvor mange meter vi
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skal væk fra vejkanten, før
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blykoncentrationen er faldet
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til middelværdien M mg / kg.
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Expression 28: 0 less than or equal to "y" less than or equal to "f" left parenthesis, "x" , right parenthesis left brace, 0 less than or equal to "x" less than or equal to "b" , right brace0≤y≤fx0≤x≤b
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Hjælpelinjer
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Punkter
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"M" equals 31.1 7M=31.17
"x" Subscript, 1 , Baseline equals 20.3 8 "m" "f" "r" "a" "v" "e" "j" "k" "a" "n" "t" "e" "n" "e" "r" "b" "l" "y" "k" "o" "n" "c" "e" "n" "t" "r" "a" "t" "i" "o" "n" "e" "n" equals 31.1 7 "m" "g" / "k" "g" .x1=20.38mfravejkantenerblykoncentrationen=31.17mg/kg.