Sum of all adjacent angles is 180°.
3x + 12 + x = 180
4x + 12 = 180
4x = 168
x = 42°
-----------------------------------------
Answer: x = 42°
-----------------------------------------
Answer:
8
Step-by-step explanation:
2^(0.5+3) = 2^3.5 = 8√2
According to Vieta's Formulas, if

are solutions of a given quadratic equation:
Then:
is the completely factored form of

.
If choose

, then:

So, according to Vieta's formula, we can get:

But

:
Hello,
The answer is B
Hope this helped :)