Answer:
18.7
Step-by-step explanation:
The Law of Cosines is 
, where c is the unknown side length of a triangle, a and b are the remaining two side lengths, and C is the angle opposite to side c. To answer this question just plug in the known values:
Simplify:
m≈18.665...
When rounded to the nearest tenth, m=18.7
<span>(4.214) x (3.06) = 12.89484 and can be rounded up to 12.9</span>
Answer: y
=
−
2
x
+
1
This is because slope intercept from is "Y= mx+b" :)
