That's correct but whats your question?
Answer:
The farmer should plant 14 additional trees, for maximum yield.
Step-by-step explanation:
Given



So, we have:


Required
The additional trees to be planted for maximum yield
The function is:


Open bracket



Rewrite as:

Differentiate

Equate
to 0 and solve for x to get the maximum of x


Divide by -4

The farmer should plant 14 additional trees, for maximum yield.
Cost of washer: $720
Cost of dryer: $240
I've taken this test before and got it right, so you're good :)
The answer is C
You find this by dividing Y by X
Answer:
There are no real solutions to this equation
Step-by-step explanation: