y=mx+b
m=0.547300469= 0.55
b=-5.806910798= -5.81
y=0.55x-5.81
y=0.55(12)-5.81 = 0.79
Answer:
Step-by-step explanation:
Use the cosine ratio, . Insert the values:
Isolate x. Multiply both sides by x:
Divide both sides by cos 25:
Insert into a calculator:
Round to the nearest hundredth:
Done.