Question

Can any of my fellow friends help

Answer 1

x=42.3


Hope this helps buddy

Answer 2

x = 42.3

Explanation:

the law of cosines is stated below, we will set c = x

x^2 = 25^2 + 30^2 - 2(25)(30)cos(100)

plug into calculator

x ^2 = 1785.472267

x = 42.3