Answer: The value of x is 57.8.
Step-by-step explanation: We are given to find the value of x to the nearest tenth.
We can see from the figure that
the triangle is a right-angled triangle with one of the legs measuring 11 units and the hypotenuse is 13 units in length.
For the acute angle measuring x°, the perpendicular measures 11 units.
So, we get
![\sin x^\circ=(perpendicular)/(hypotenuse)\\\\\\\Rightarrow \sin x^\circ=(11)/(13)\\\\\\\Rightarrow \sin x^\circ=0.8461\\\\\Rightarrow x^\circ=\sin^(-1){0.8461}\\\\\Rightarrow x^\circ=57.7899\\\\\Rightarrow x^\circ=57.8^\circ\\\\\Rightarrow x=57.8.](https://img.qammunity.org/2020/formulas/mathematics/high-school/jkw5o7587w3uvj65evlmzn8svyklkwvsst.png)
Thus, the value of x is 57.8.