Answer:5.5
Step-by-step explanation:
x=7
z=10
Y=32°
cosine rule :
y^2=x^2+z^2-2xzcosY
y^2=7^2+10^2-2 x 7 x 10 x cos32
y^2=7x7 + 10x10 - 2x7x10x0.8480
y^2=49+100-118.72
y^2=149-118.72
y^2=30.28
Take the square root of both sides
√(y^2)=√(30.28)
y=5.5
