Answer:

Step-by-step explanation:
we know that
The formula of law of cosines is equal to

where
a, b and c are sides. C is the angle opposite side c
In this problem we have

substitute the given values






Answer:
Yes, 4 18/12 is equal to 5 6/12.
Step-by-step explanation:
Given that
4 18/12 = 5 6/12
11/2 = 11/2
Yes both are equal.
Answer:
2/3 of 60 minutes = 40 Minutes for Kaitlin
Judy spends 1 1/2 times of Kaitlin = 60 Minutes
Step-by-step explanation:
Explain why Judy's homework time is between 2/3 of an hour and 1/2 hour? I have no idea what is meant by that?