9y is the answer I believe
In the first octant, the given plane forms a triangle with vertices corresponding to the plane's intercepts along each axis.



Now that we know the vertices of the surface

, we can parameterize it by

where

and

. The surface element is

With respect to our parameterization, we have

, so the surface integral is
2*30
Im not sure but i tried it
The equation can be modeled as
X + X + (X+4) = 61
X is used for all because they are all the same number and can be given the same variable
The third is given plus four so we can use a common variable
3x + 4 = 61
3x = 57 (subtracted four)
x = 19 (divided by three)
Solving for third side so x + 4
The third side is 23 inches
Answer:
1 9/16 in (or 25/16in)
Step-by-step explanation:
4 5/8 = 4 10/16
6 3/16- 4 10/16 = 1 9/16
Material of pipes is irrelevant