At a store, customers are randomly selected to participate in a survey. On Friday there were 500 customers at the store. Of thos
1 answer:
You might be interested in
that's what I got, you can confirm if it's correct or not... I'm not sure
have a nice dayʘ‿ʘ
Answer:
d) 86.2 degrees
x = 86.20°
Attached is the image used in the question;
Step-by-step explanation:
Applying the law of cosine;
Cos C = (a² + b² - c²)/2ab
Where;
Angle C = x
c = 13 ft
b = 9ft
a = 10ft
Substituting into the equation;
Cos x = (10² + 9² - 13²)/(2×10×9)
Cos x = 0.0667
x = cos⁻¹(0.0667)
x = 86.20°
