Answer:
x = 45
Step-by-step explanation:
The 2 given angles are adjacent snd sum to 180° , then
2x + 45 + x = 180 , that is
3x + 45 = 180 ( subtract 45 from both sides )
3x = 135 ( divide both sides by 3 )
180 = (2x + 45) + x
135 = 2x + x
135/3 = 3x/3
45 = x
a2+b2= (a+b)2 - 2ab
a2+b2= (5)2 + 2(6)
a2+b2= 25+12.
a2+b2= 37
Answer
(3, -5)
hope it helps :)
