Answer:
-1.75
Step-by-step explanation:
This should be it, but you didn't provide options although you put "Which of the following.."
Answer:
I do not understand the question
Step-by-step explanation:
I do not understand the question. Perhaps you can add a picture to clearify?
Answer:
2.8
Step-by-step explanation:
using cosine rule
= 
s =
= 2.842 = 2.8
Answer:
Step-by-step explanation:
This is already solved, and this would not be considered a inequality since it has only a equal sign.
Answer:
x = -1/4
Step-by-step explanation: