A store finds that its sales revenue changes at a rate given by S'(t) = -30t2 + 400t dollars per day where t is the number of days after an advertising campaign ends and 0 ≤t≤ 30. (a) Find the total sales for the first week after the campaign ends (t = 0 to t = 7). $ (b) Find the total sales for the second week after the campaign ends (t = 7 to t = 14). $

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.6: Solving Quadratic Equations By Using The Quadratic Formula
Problem 28PPS
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A store finds that its sales revenue changes at a rate given by
4
S'(t) = -30t² + 400t dollars per day
where it is the number of days after an advertising campaign ends and 0 ≤ t ≤ 30.
(a) Find the total sales for the first week after the campaign ends (t = 0 to t = 7).
$
(b) Find the total sales for the second week after the campaign ends (t = 7 to t = 14).
$
Transcribed Image Text:A store finds that its sales revenue changes at a rate given by 4 S'(t) = -30t² + 400t dollars per day where it is the number of days after an advertising campaign ends and 0 ≤ t ≤ 30. (a) Find the total sales for the first week after the campaign ends (t = 0 to t = 7). $ (b) Find the total sales for the second week after the campaign ends (t = 7 to t = 14). $
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