Answer:
B.
Step-by-step explanation:
Just did the quiz
We know that
angle F=180°-(40+87)°=53°
applying the law of sines
EF/sin G=EG/sin F
EF=x
EG=13 cm
G=87°
F=53°
so
x/sin 87°=13/sin 53°---------> x=sin 87*(13/sin 53°)-------> x=16.3 cm
The answer is
x=16.3 cm
add 4n and 5n, which is 9. 9n=-9, and if u divide both sides by nine, n=-1
