A company estimates that it will sell N(x) units of a product after spending x thousand dollars on advertising, as given by N(x) = -3x + 275x² – 3400x + 19000, 10 < x < 40. (A) Use interval notation to indicate when the rate of change of sales N'(x) is increasing. Note: When using interval notation in WeBWorK, remember that: You use 'l' for o and '-l' for -o, and 'U' for the union symbol. If you have extra boxes, fill each in with an 'x'. N'(x) increasing: (B) Use interval notation to indicate when the rate of change of sales N'(x) is decreasing. N'(x) decreasing: (C) Find the average of the x values of all inflection points of N(x). Note: If there are no inflection points, enter -1000. Average of inflection points = (D) Find the maximum rate of change of sales. Maximum rate of change of sales =
A company estimates that it will sell N(x) units of a product after spending x thousand dollars on advertising, as given by N(x) = -3x + 275x² – 3400x + 19000, 10 < x < 40. (A) Use interval notation to indicate when the rate of change of sales N'(x) is increasing. Note: When using interval notation in WeBWorK, remember that: You use 'l' for o and '-l' for -o, and 'U' for the union symbol. If you have extra boxes, fill each in with an 'x'. N'(x) increasing: (B) Use interval notation to indicate when the rate of change of sales N'(x) is decreasing. N'(x) decreasing: (C) Find the average of the x values of all inflection points of N(x). Note: If there are no inflection points, enter -1000. Average of inflection points = (D) Find the maximum rate of change of sales. Maximum rate of change of sales =
Chapter2: Functions And Their Graphs
Section2.4: A Library Of Parent Functions
Problem 47E: During a nine-hour snowstorm, it snows at a rate of 1 inch per hour for the first 2 hours, at a rate...
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![A company estimates that it will sell N(x) units of a product after spending x thousand dollars on advertising, as given by
N(x) = -3x + 275x² – 3400x + 19000,
10 < x < 40.
(A) Use interval notation to indicate when the rate of change of sales N'(x) is increasing.
Note: When using interval notation in WeBWorK, remember that: You use 'l' for o and '-l' for -o, and 'U' for the union symbol.
If you have extra boxes, fill each in with an 'x'.
N'(x) increasing:
(B) Use interval notation to indicate when the rate of change of sales N'(x) is decreasing.
N'(x) decreasing:
(C) Find the average of the x values of all inflection points of N(x).
Note: If there are no inflection points, enter -1000.
Average of inflection points =
(D) Find the maximum rate of change of sales.
Maximum rate of change of sales =](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcd7dc328-e7f4-44c0-8adf-0c2000832d0e%2Fe902afea-23d5-4af9-a23f-9ed47881857c%2Fmxduh66.png&w=3840&q=75)
Transcribed Image Text:A company estimates that it will sell N(x) units of a product after spending x thousand dollars on advertising, as given by
N(x) = -3x + 275x² – 3400x + 19000,
10 < x < 40.
(A) Use interval notation to indicate when the rate of change of sales N'(x) is increasing.
Note: When using interval notation in WeBWorK, remember that: You use 'l' for o and '-l' for -o, and 'U' for the union symbol.
If you have extra boxes, fill each in with an 'x'.
N'(x) increasing:
(B) Use interval notation to indicate when the rate of change of sales N'(x) is decreasing.
N'(x) decreasing:
(C) Find the average of the x values of all inflection points of N(x).
Note: If there are no inflection points, enter -1000.
Average of inflection points =
(D) Find the maximum rate of change of sales.
Maximum rate of change of sales =
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