Answer:
The surface area is 54 square feet
Step-by-step explanation:
Given
The attached figure
Required
The surface area
This is calculated as:

Where

So,


Answer:
-12
Step-by-step explanation:
Hope this helps :D
Answer:
x = -1.8
Step-by-step explanation:
-9x = 16.2
Divide each side by -9
-9x/-9 = 16.2/-9
x = -1.8
Answer:
9 boards
Step-by-step explanation:
2/3 of the porch= 6 boards
so to figure out how much one third of the porch needs you find half of what it takes to fill in 2/3 of the porch and you get 3.
so 3=1/3 of the porch
then you simply do 3times 3 or 3+3+3 and you get 9
so it takes 9 boards to fill the whole porch
1:2 = 3:6
The second number is double the first.