The graph of $\displaystyle {y}=-{x}^{{2}}-{10}{x}-{18}$ is shown above. Use the method of Archimedes to find the area of the region trapped below the parabola and above the line $\displaystyle {y}={3}$.

Answer: Area = square units.
Round your answer to two decimal places (hundredths).

Hint: If you can't read the axes labels, then use the light (grey) grid lines which are 1 unit apart on each axis. It is possible to find the area from the graph and without manipulating the parabola's equation. The vertex of the parabola is at (-5,7).