The distance between -3 and 0 is positive 3 , and the distance between 0 and 5 is 5, add 5 and 3 together to get a distance of 8
Answer:
The exact cost of producing the 21st food processor is $38.52.
The marginal cost to approximate the cost of producing the 21st food processor is $38.24
Step-by-step explanation:
Consider the provided function.

(A) Find the exact cost of producing the 21st food processor
The exact cost producing 21st food processor is C(21)-C(20)
Substitute x=21 in above function.



Substitute x=20 in above function.



The exact cost producing is:

Hence, the exact cost of producing the 21st food processor is $38.52.
Part (B) Use the marginal cost to approximate the cost of producing the 21st food processor,
To find the marginal cost first differentiate the function with respect to x.


Now substitute x=21 in above function.


The marginal cost to approximate the cost of producing the 21st food processor is $38.24
Answer:
28 pans of muffins per week
Step-by-step explanation:
To solve the above question, we know that:
1 day = 4 pans of muffins
7 days = x pans of muffins
Cross Multiply
1 day × x pans of muffins = 7 days × 4 pans of muffins
x = 28 pans of muffins
Since, 7 days = 1 week
Heather makes 28 pans of muffins per week
Answer: Steve's bedroom has the greater area.
Step-by-step explanation: The formula for area is Area = Length x Width.
So all you have to do to figure this out is multiply the Width of the rooms by the length.
So Steve's room is 12ft X 13ft = 156ft
Ricardo's room is 8ft X 14ft = 112ft
156ft > 112ft
Steve's room has a greater area.