Answer:
x ≈ 1.9
Step-by-step explanation:
using the sine ratio with the upper angle of 45° , then
sin45° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{x}{\sqrt{7} }[/tex] ( multiply both sides by [tex]\sqrt{7}[/tex] )
[tex]\sqrt{7}[/tex] × sin45° = x , then
x ≈ 1.9 ( to the nearest tenth )
