I believe it’s X=+15 sorry if I’m wrong
As shown in the figures given :
For Figure 1 : perimeter = 8 units [As can be seen in the figure]
For figure 2(with 2 octagons) : perimeter = 8 × 2 - 1 = 15 units [since 1 side is common ]
For figure 2(with 3 octagons) : perimeter = 8 × 3 - 2 = 22 units [since 2 sides is common ]
If one more octagon is added
then perimeter = 8 × 4 - 3 = 29 units [since 3 sides will be common ]
Area = Length x Width
756 = 108 x Width
Width = 756/108
Width = 7
So the roof is 7 inches wide
Answer:
D
Step-by-step explanation:
2^(x-1)=11
(x-1)*ln(2)=ln(11)
x-1=ln(11)/ln(2)
x=ln(11)/ln(2)+1
get a calculator and evaluate this, you'll get