Answer:
The correct option is B
x = 7.75
Explanation:
To find the value of C using cosines law, we have:
[tex]\begin{gathered} x^2=a^2+b^2-2ab\cos C \\ \\ =2^2+9^2-2(9)(2)\cos46 \\ \\ =85-36\cos46 \\ \\ x^2=59.99 \\ \\ x=\sqrt{59.99}\approx7.75 \end{gathered}[/tex]
