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		<title>2.4 Lösning 8 - Versionshistorik</title>
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		<updated>2026-11-05T09:44:51Z</updated>
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		<id>https://wiki.mattekollen.se/index.php?title=2.4_L%C3%B6sning_8&amp;diff=16458&amp;oldid=prev</id>
		<title>Taifun den 19 oktober 2014 kl. 11.57</title>
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				<updated>2014-10-19T11:57:14Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Ny sida&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Bakteriernas antal:&lt;br /&gt;
&lt;br /&gt;
:&amp;lt;math&amp;gt; y = 60\,x^4 + 3\,250 &amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Bakteriernas tillväxthastighet:&lt;br /&gt;
&lt;br /&gt;
:&amp;lt;math&amp;gt; y\,' \,=\, 240\,x^3 &amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Vi sätter tillväxthastigheten till &amp;lt;math&amp;gt; {\color{White}l} 2\,000 {\color{White} x} &amp;lt;/math&amp;gt; bakterier per timme och beräknar &amp;lt;math&amp;gt; \,x&amp;lt;/math&amp;gt;:&lt;br /&gt;
&lt;br /&gt;
:::&amp;lt;math&amp;gt;\begin{array}{rcl}  240\,x^3 &amp;amp; = &amp;amp; 2000  \\&lt;br /&gt;
                                  x^3 &amp;amp; = &amp;amp; {2000 \over 240} \\&lt;br /&gt;
                                  x^3 &amp;amp; = &amp;amp; 8,333... \\&lt;br /&gt;
                                  x   &amp;amp; = &amp;amp; (8,333...)^{1/3} \\&lt;br /&gt;
                                  x   &amp;amp; \approx &amp;amp; 2,0274&lt;br /&gt;
      \end{array}&amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;math&amp;gt; \,2,0274 &amp;lt;/math&amp;gt; timmar innebär:&lt;br /&gt;
&lt;br /&gt;
:&amp;lt;math&amp;gt; 2,0274 \; {\rm h} \,=\, 2 \; {\rm h} + 0,0274 \; {\rm h} \,=\, 2 \; {\rm h} + 0,0274 \cdot 60 \; {\rm min} \,=\, 2 \; {\rm h} + 1,644 \; {\rm min} \,\approx\, 2 \; {\rm h} + 2 \; {\rm min} &amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Bakteriernas tillväxthastighet blir &amp;lt;math&amp;gt; {\color{White}l} 2\,000 {\color{White} x} &amp;lt;/math&amp;gt; bakterier per timme efter &amp;lt;math&amp;gt; {\color{White}l} 2 \; {\rm timmar\;och\;} 2 \; {\rm minuter} &amp;lt;/math&amp;gt;.&lt;/div&gt;</summary>
		<author><name>Taifun</name></author>	</entry>

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