Answer:
0.13 ft/min
Step-by-step explanation:
We are given that

We have to find the increasing rate of change of height of pile when the pile is 12 ft high.
Let d be the diameter of pile
Height of pile=h
d=h
Radius of pile,r=
Volume of pile=

h=12 ft
Substitute the values



The amount of Cute Puppy food needed for the year is 1140 cans.
<h3>Determining the total number of cans that the dogs eat in a year</h3>
The first step in determining the total number of cans needed in year is to calculate the sum of dog food consumed in a week.
8.25 + 15.5 = 23.75 cans
The second step is to determine the total cans the dogs consume in a month
23.75 x 4 = 95
The third second step is to determine the total cans the dogs consume in a year:
95 x 12 = 1140 cans
<h3>Cost of cute puppy food needed in a year</h3>
1140 x ($21 /40) = $598.50
To learn more about addition, please check: brainly.com/question/19628082
This function would have a maximum.
Since we are subtracting by a -4 for each increase in x, we know that the numbers will continue to go down. Given this fact, we know the number will never be higher than when we started, but the number could go infinitely low. As a result we have a maximum and no minimum.
8/20 of a minute or 2/5 of a minute