$\"\"$

Power consumption $\"\"$ in the province of ontario is shown.

$\"\"$ is measured in mega watts and $\"\"$ is measured in hours.

Power is rate of change of energy.

Energy is defined as $\"\"$ .

Here $\"\"$ and $\"\"$ .

Determine $\"\"$ .

Use the Midpoint rule to estimate $\"\"$ .

Mid point rule:

$\"\"$ , where $\"\"$ .

$\"\"$ .

Sustituter corresponding values in above expression from the graph.

$\"\"$

$\"\"$ .

Energy used on December 9,2004 is $\"\"$ mega watt-hours.

$\"\"$

Energy used on December 9,2004 is $\"\"$ mega watt-hours.