Step-by-step explanation:
Perimeter=2length+2width
=2×20 + 2×18
40+36
=76inches
Answer:
y= 1x +3
Step-by-step explanation:
brainliest?
Answer:
-149
Step-by-step explanation:
To solve, we must first plug our known values for a and b into the equation and then follow the order of operations.
1.
2.
3.
4.
5.
The surface area of a rectangular prism is given by
... S = 2(LW +H(L+W))
For your dimensions, the surface area is
... S = 2(3·1 + 2(3+1)) = 2(3 + 8) = 22 . . . ft²