Y=2/7x-53/7 should be what you are looking for.
I believe the answer is the 3rd option Thermal conductivity. Hope this helps.
☆=(ゝω・)/
we are given to find

we know that

where
i is number of rows
j is number of column
Here , we get
i=2
and j=3
so,
means second row and third column
we can look at matrix and find element
we can see that
that element is -21
so,
...........Answer
Answer:
1 over 32
Step-by-step explanation:
you multiply 3 by 18 to get 64 then simplify by dividing by 2