none of the above
Step-by-step explanation:
- 36x²-4x+16 = (6x)²- 2*2*x+ 4² this isn't a perfect square trinomial
- 16x²-8x+36 = (4x)² - 2*4*x+6² this isn't a perfect square trinomial
- 25x²+9x+4= (5x)²+2* 9/2 *x+ 2² this isn't a perfect trinomial
- 4x²+20x+25 = (2x)² + 5*4*x+5² this isn't a perfect trinomial square
Since AED forms a straight line, all involved angles sum to 180°. Therefore AEB + BED = 180. Also, since EC bisects BED, BEC = CED, and BED = 2× CED. Now to substitute the first equation:
AEB + BED = 180
AEB + 2×CED = 180
11x-12 + 2(4x+1) = 180
11x-12+8x+2 = 180
19x-10 = 180
19x-10+10 = 180+10
19x = 190
x = 10
So what is m<AEC?? It is the sum of AEB + BEC, and since BEC = CED we can say that:
AEC = AEB + CED
AEC = 11x-12 + 4x+1 = 15x-11 = 15(10)-11 = 150-11
m<AEC = 139°
$4.00/10=x/1
for example if you want to buy apples that cost 4.00 dollars for 10 pounds you might want to know how much it costs for 1 pound.
First, make y negative
y=-x-1
From there, you would go down 1 and right 1
3 points you could choose are (0,-1), (-2,1), and (-3,2)