Answer:
1. 98.7 km
2. 303.5 degree
Step-by-step explanation:
Using the alternate angle, the angle at B will be 50 + 10 = 60 degree.
To calculate the length AC of the returning journey, use cosine formula to calculate it.
To find the bearing of the returning journey, use sine rule to calculate it.
Please find the attached file for the solution
A constant function is a function whose output value f(x) is the same for every input value x, i.e. for all x, f(x)=c.
This means that
Answer: correct choice is A.
4 1/2 is the exact answer. 5 is the estimate.