Answer:
C.
![31.4]()
Explanation:
We have been given a right triangle. We are asked to find the value of x to nearest tenth.
We can see that x is hypotenuse and side with 18 units is opposite side to angle 35 degrees.
We know that sine relates opposite side right triangle to hypotenuse.
![\text{sin}(35^(\circ))=(18)/(x)]()
![x=\frac{18}{\text{sin}(35^(\circ))}]()
![x=(18)/(0.573576436351)]()
![x=31.382042]()
![x\approx 31.4]()
Therefore, the value of x is 31.4 and option C is the correct choice.