document.write( "Question 1105000: The total energy in megawatt-hour used by a town is given by\r
\n" ); document.write( "\n" ); document.write( "E(t)=400t+(2400/π)sin(πt/12)\r
\n" ); document.write( "\n" ); document.write( "where t>=0 is measured in hours,with t=0 corresponding to noon.At what time of the day is the rate of energy consumption is minimum?
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Algebra.Com's Answer #720069 by Alan3354(69443) $\"\"$ $\"About$

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The total energy in megawatt-hour used by a town is given by\r
\n" ); document.write( "\n" ); document.write( "E(t)=400t+(2400/π)sin(πt/12)\r
\n" ); document.write( "\n" ); document.write( "where t>=0 is measured in hours,with t=0 corresponding to noon.At what time of the day is the rate of energy consumption is minimum?
\n" ); document.write( "========
\n" ); document.write( " $\"E%28t%29+=+400t+%2B+%282400%2Fpi%29sin%28pi%2At%2F12%29\"$
\n" ); document.write( "E'(t) = $\"400+%2B+%282400%2Fpi%29cos%28pi%2At%2F12%29%2A%28pi%2F12%29\"$ = 0
\n" ); document.write( "Solve for t.
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