Answer:
X = 16
Step-by-step explanation:
Notice that we are in the presence of two similar triangles, one larger than the other. The larger triangle is AED, and the smaller one is ACB.
Since there are similar triangles, we can write a proportionality between their known sides:

notice that AD = x + 6
AB = x
ED = 11
CB = 8
So now we can re-write the proportion and solve it for the unknown "x":

Answer:
2513.3
Step-by-step explanation:
hope this helps :)
Answer:
Choices C and D
Step-by-step explanation:
Since the 2 is subtracted on the left side, you need to add 2 to both sides.
Since x is being multiplied by 1/4, you need to divide both sides by 1/4 which is the same as multiplying both sides by 4/1.
Answer: Choices C and D
Step-by-step explanation:
Assuming figure to be trapezoid,
Perimeter=6+4+7+4yd
=21 yd
Area of trapezoid=((6+7)/2) x ((4)^2-(0.5)^2)
=(13/2)x(16-0.25)
=6.5 x 15.75
=102.375 Sq yards