Mass$-$Density Formula of a One$-$Dimensional Object

Qiven a prin rod orterited along the $x-$axis over the riterval $a,b,$ let $(x)$ denote a linear density function given the density of the rod at a point $x$ in the interval, Then the mass of the rod is given by

$m={\displaystyle \underset{0}{\overset{b}{}}}(x)dx$

Froblem E

The linear derity in a rod $10$ m long is $p=\frac{12}{\sqrt[\phantom{2}]{x1}}(\frac{{?}^{kg}}{m^2})$ where $x$ is measured in meters from one end of the rod. Find the mass of the above object by ssing the average density of the red.