Answer:
Area. Perimeter would be every room you'd paint.
Answer:
Step 3.
Step-by-step explanation:
Step 3
She wrote that a4 - 12a3 = -11a.
a4 and 12a3 are unlike terms so they cannot be added.
Answer:6a+9
Step-by-step explanation:
You cant combine a number with a variable that doesn’t have a variable
Hey there!
Formula for area of an octagon:
A = 2(1 + √2)a²
The variable a is side length.
Plug in 13 for a.
A = 2(1 + √2)13²
Simplify.
A = 2(1 + √2)169
A = 338(1 + √2)
A = 816 ft²
Hope this helps!