If you only used 13% then you used 4.42 pounds of dry ice.
The answer would be (8/11,0) as the x-intercept
I don't know how to explain but the answer is 2.4.
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





