2(x - 3) = 14; x = helppppp
2 answers:
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Answer:
B
Step-by-step explanation:
We can use the law of cosinse:
=
− 2ab cos(C)
Suppose the two sides are a and b, and the angle betweent them is C.
=
− 2*3*4 cos(60)
We can simplify this to get =25-12=13
c=
Answer choice B