Answer:
8
Step-by-step explanation:
Answer:
x = 12
Step-by-step explanation:
Proportional relationship means that
= k(a constant)
Here, k = 12/8 = 3/2
So, the equation is
= 3/2.
Plug in y = 18, and we get 18/x = 3/2.
18 = 3/2x
x = 12
Answer: The derivative would be 
Step-by-step explanation:
Since we have given that

As we will use "Chain Rule"
and at last we will use the identity ''
''
We need to find the derivative of the function:

Hence, the derivative would be
