X+0.0825x=216.5
1.0825x=216.5
x=216.5 / 1.0825
x=200
Answer: C.) x=200
Answer:
C. 132°
Step-by-step explanation:
Based on exterior angle theorem,
(20x + 12) = (9x) + (13x)
Solve for x
20x + 12 = 9x + 13x
20x + 12 = 22x
Subtract 20x from each side
12 = 22x - 20x
12 = 2x
Divide both sides by 2
12/2 = x
x = 6
m<QRS = 20x + 12
Plug in the value of x
m<QRS = 20(6) + 12 = 120 + 12
m<QRS = 132°
If the 4x2 is actually 4x^2 then the answer is
-(4x+3x-24)
A= b*h / 2
(6.5)(3) / 2
19.5/2 = 9.75
Hope that helps...
Centroid is the correct answer
