- Test: Test 3 Part 2: Chapter 3 Sections 3.6, 3.8, 3.9 Question 1 of 20 This test: 20 point(s) possible @ Submit test This question: 1 point(s) possible and Chapter 4 Sections 4.1 - 4.7 3,400,000 Question ||st | The number of times a new pop song has been downloaded t weeks after its initial release is given by f(t) = W4 a) After how many weeks is the rate of change of the number of downloads maximized? b) What is the rate of change of the number of downloads at the time found in part (a)? O Question 1 c) How many times has the song been downloaded at the time found in part (a)? O Question 2 a) The rate of change of the number of downloads is maximized after weeks. (Do not round until the final answer. Then round to two decimal places as needed.) O Question 3 b) The rate of change of the number of downloads is songs per week. (Round to the nearest whole number as needed.) O Question 4 c) The song been downloaded | | times. (Round to the nearest whole number as needed.) O Question 5 O Question 6 O Question 7 O Question 8 O Question 9 O Question 10 @ Time Remaining: 03:59:39 m E Test: Test 3 Part 2: Chapter 3 Sections 3.6, 3.8, 3.9 and Chapter 4 Sections 4.1 - 4.7 This question: 1 point(s) possible and Chapter 4 Sections 4.1 - 4.7 Submit test Suppose that the price p, in dollars, and the number of sales, x, of a certain item are related by 4p + 5x + 2px = 58. If p and x are both functions of time, measured in days. Find the rate at which x is Question list & d changing when x=2, p=6, and ?f =16. O Question 1 The rate at which x is changing is O Question 2 (Round to the nearest hundredth as ne day(s) per sale. O Question 3 sale(s). O Question 4 I O Question 5 day(s). O Question 6 O Question 7 O Question 8 O Question 9 O Question 10 @ Time Remaining: 03:59:02 m = Test: Test 3 Part 2: Chapter 3 Sections 3.6, 3.8, 3.9 This test: 20 point(s) possible @ ST TR G and Chapter 4 Sections 4.1 - 4.7 Question4of20 > This question: 1 point(s) possible Use Simpson's Rule to find S, using the indicated value of n. Question list 1