For this case we have the following subtraction:

We can rewrite the subtraction in an easier way.
We have then:

Then, by doing associative property we have:

Answer:
The value of the subtraction is given by:

1/6^4= 1/1296
I think this is the answer
Answer:
x= 1
y = -4
Step-by-step explanation:
8x + 9y = -28
-4x = y
8x + 9(-4x) = -28
8x - 36x = -28
-28x = - 28
x = 1
y = -4(1) = -4
Answer: 12.65 ft
Pythagorean theorem is
+
= 
So,
+
= 
169 - 9 = 160
is 12.65.
Hope it helps.