Part A: The x-intercept represents the maximum amount of profit the company makes depending on the price of erasers. The intervals would be the prices of the erasers, and they represent the correlation between sale and profit. For example, when each eraser costs $4, the company makes the max profit of $270.
Part B: The average rate of change would be $91.875 and the rate represents that, on average, for each dollar that the price of the eraser jumps, the profit jumps an average of $91.875.
Part C: The constraints of the domain would be things like how the price of the erasers cannot go less than $0 or above $8; 0 
x 8.
Step-by-step explanation:
no explanations.I have done the whole sum
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The perimeter of the rectangle is the sum of its dimensions
The dimensions that minimize the perimeter are 
The area is given as:
Let the dimension be x and y.
So, we have:
Make x the subject
The perimeter is calculated as:
Substitute
Expand
Differentiate
Set to 0
Rewrite as:
Divide both sides by -1
Multiply y^2
Divide by 2
Take square roots of both sides
Substitute in
Hence, the dimensions that minimize the perimeter are
Read more about perimeters at:
brainly.com/question/6465134
Answer:
r = √(V/πh)
Step-by-step explanation:
V=π*r^2*h solve for r
divide both sides by πh
V/πh = π*r^2*h/πh
Simplify
V/πh = r^2
so r = √(V/πh)
