Answer:
x = 20
Step-by-step explanation:
The consecutive angles in a parallelogram are supplementary, sum to 180°
5x + 4x = 180
9x = 180 ( divide both sides by 9 )
x = 20
<span>25a^2 - 100
= 25(a^2 - 4)
GCF = 25
Hope it helps</span>
X+6y=12
6y=12-x
y=12/6- x/6
y=(-1/6)(x)+2
2x^2 + 16x + 34 = 0
x^2 + 8x + 17 = 0
x^2 + 8x + 16 = -17 + 16 = -1
(x + 4)^2 = -1
x + 4 = sqrt(-1) = ±i
x = -4 <span>±</span> i
