Step-by-step explanation:
here,,
a=3,b=10,C=120°
c^2=a^2+b^2-2ab cos120°
=(3)^2 +(10)^2 _2 (3)(10)(-1/2) [cos120°=-1/2]
=9+100-(-30)
=109+30
=139
c=(139 )1/2=11.79
c=12
Answer:
The translation is;

Explanation:
Given the translation rule;

when P' is the image of P.
For the inverse, when P is the image of P', the Translation rule would become;

The translation is;
3,6,8,5, these are your answers
Y=3x-5
Y=5/4x+3/4
The solution to the equations is in the picture