Then, the partial derivative $\displaystyle \pdiff{f}{x}(x,y)$ is the same as the ordinary derivative of the function $g(x)=b^3x^2$. Using the rules for ordinary differentiation, we know that \begin{align*} \diff{g}{x}(x) = 2b^3x.
The typical dishwasher can be expected to last between seven and 12 years, with the average working expectancy being nine to 10 years.Certain factors, such as cost, quality, brand, care, maintenance and frequency of usage, can affect the life expectancy of a dishwasher.hile your particular model may last for a longer or shorter duration than the average expectancy, it is good to have an idea of the average time you can expect your appliance to last. This will give you an idea of when the dishwasher will need to be replaced and help you to budget accordingly.
Dishwasher: 10-13 years Extend its life: Run it regularly. This helps keep the seals, gaskets, and hoses from dry-rotting and keeps mold and mildew from forming. Gas Range: 15 years Extend its life: Clean the vent hood filter above the range to help prevent a buildup of grease. Also clean the grease filter regularly.