we are given

where
F is the number of board feet
d is the diameter (in inches) of the log
Since, we have to minimize F
so, firstly we will find it's derivative


now, we can set it to 0
and then we can solve for d


so, we get diameter as
..............Answer
Answer:
B. y=(x-1500)/4
Step-by-step explanation:
Given that:
Monthly budget = x dollars
Monthly mortgage = $1500
Recreational activities = 1/4 of remaining budget
Amount in dollar spent on recreational activities =
(Monthly budget - monthly mortgage) * 1/4
(x - 1500) * 1/4
Hence,
y = (x - 1500) / 4
Answer:
Everything but A and C
Step-by-step explanation: