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De Anza College *
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Course
101
Subject
Mathematics
Date
Feb 20, 2024
Type
Pages
7
Uploaded by MinisterPorpoise2550
1/27/24, 3:37 PM
2.4 HW Arc Length & Surface Area
https://rsccd.instructure.com/courses/111152/assignments/2181503
1/7
2.4 HW Arc Length & Surface Area
Due
Jan 10 by 2pm
Points
15
Submitting
an external tool
Prepare
Make sure you have read and viewed the following before you begin:
Section Reading
Section Videos
Introduction
You will view a video and then answer a question about it.
For each question, you have unlimited attempts. After the third attempt, the answer will be
given and a new version of the question can be generated.
To navigate the assignment, use the page links on the left side of the assignment where it says
"Pages" to view the different sections of the assignment and access all practice questions.
Need Help?
If you would like assistance from your instructor or classmates on this section, you may post to the
module discussion board Module 2 - Area & Arc Length
(https://rsccd.instructure.com/courses/111152/discussion_topics/1403185) .
(https://rsccd.instructure.com/courses/111152/discussion_topics/1403191) Remember to copy and
paste the question to the discussion board and tell us what you have done so far so that we can
identify your problem and help you solve it.
As a free resource to you, you may use the free online tutoring service: About NetTutor- Free
Online Tutoring Services
(https://rsccd.instructure.com/courses/111152/pages/about-net-tutoring) . The service is free to all online SAC students.
In addition, there are three learning centers at SAC that you can use to get math help:
SAC Academic Computing Center
(https://sac.edu/AcademicProgs/Business/ACC/Pages/default.aspx)
SAC Learning Center
(http://www.sac.edu/AcademicProgs/HSS/LearningCenter/Pages/default.aspx)
SAC Math Center
(http://sac.edu/AcademicProgs/ScienceMathHealth/MathCenter/Pages/default.aspx)
1/27/24, 3:37 PM
2.4 HW Arc Length & Surface Area
https://rsccd.instructure.com/courses/111152/assignments/2181503
2/7
Score: 1/1 1/1
Time spent on this version: 2.7 minutes. Show all tries
Question 2. -10
Red f(x) = Represent the LENGTH of f(x) for -1 ≤x≤ 2
as a definite integral
LENGTH = 1 + 2
x
− 6
2
dx
Then use your calculator to evaluate the integral
as a decimal number (rounded to 1 decimal places).
LENGTH = 15.3
Remember: for trig functions you must be in radian mode.
√
|
|
Version 4*/4. Score: 2/2
Let C be the curve , for . A graph of y follows.
0.5
1
1.5
-0.5
-1
-1.5
-2
-2.5
14.6
14.7
14.8
14.9
15
15.1
15.2
15.3
15.4
15.5
15.6
15.7
15.8
15.9
16
16.1
Find the arc length of C = .
2
(
)
1/27/24, 3:37 PM
2.4 HW Arc Length & Surface Area
https://rsccd.instructure.com/courses/111152/assignments/2181503
3/7
Score: 1/1 1/1
Time spent on this version: 0.9 minutes.
Question 3. Score: 1/1
Time spent on this version: 1.6 minutes. Show all tries
Question 4. Score: 1/1
Time spent on this version: 1.1 minutes.
Question 5. Score: 1/1
Time spent on this version: 0.6 minutes.
Had help available: Video
Question 6. First find and simplify 25 −
x
2
x
2
+ 25
Now integrate to find arc length = = 4.96
(
)
Version 1*/1. Score: 1/1
Find the surface area of revolution about the y-axis of over the interval 4
5
π
√
Version 1*/1. Score: 1/1
Find the surface area of revolution about the y-axis of over the interval 28
π
Version 1*/1. Score: 1/1
Find the arclength of on 3
17
√
Version 1*/1. Score: 1/1
Find the arclength of on 3.25
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