Answer:
114.4
Step-by-step explanation:
421.2
-305.2
114.4
Answer:
cos-1(-4/14)
Step-by-step explanation:
If
4.5=r
3.5=s
2=t
By law of cosines:

Isolate the variable by dividing each side by factors that don't contain the variable.
l = v/wh
w
h
Just replace all of the x’s with 5 and solve using order of operations. I will post what I got for my answer in the comments of the answer if you need it.