2/3/26, 6:17 PM Benchmark 3: Checkpoints 1-3; Attempt review
Calculus 1l / Benchmark 3: Checkpoints 1-3 / Benchmark 3: Checkpoints 1-3
Startedon Sunday, February 1, 2026, 1:31 PM
State Finished
Completed on Sunday, February 1, 2026, 2:00 PM
Time taken 28 mins 21 secs
Grade 125.00 out of 125.00 (100%)
Question 1
Correct
4.17 points out of 4.17
The volume of a spherical balloon is increasing at a constant rate of 3 in® / 8. At which of the following rates is the radius
of the balloon increasing at the instant its radius is 2 inches?
Select one:
3 .
a. g-in/s
b. 5-in/s
9 .
C. 1ein/s
g .
d 3
-in/s in/s¥Y
Question 2
Correct
4.17 points out of 4.17
The deflection of a hardwood beam of length L is given by
D(z) = %:1:4 — 7Lz® + 5L%z?
where z is the distance from the fixed end of the beam. Which of the following values of x yields the maximum deflection?
Select one:
a. 0
b. Z=v
¢ S
d. % and %
https://moodle.straighterline.com/mod/quiz/review.php?attempt=7113513&cmid=128394 112
, 2/3/26, 6:17 PM Benchmark 3: Checkpoints 1-3; Attempt review
Question 3
Correct
4.17 points out of 4.17
For which of the following values of cwilly = = + % have arelative maximumat z = —5?
Select one:
a. -25
b. -5
c. 5
d. 25v
Question 4
Correct
4.17 points out of 4.17
If sinxz = €Y, 0 < x < m,which of the following is an expression for % interms of x?
Select one:
a. tanx
b. -cotx
c. cotx¥vy
d -tanx
Question 5
Correct
4.17 points out of 4.17
, o z2 41
Find the derivative of y = .
x2 —1
Select one:
3 —4z
(e =1
b. 1
C 48
(@ — 1
d 4
(% 17
https://moodle.straighterline.com/mod/quiz/review.php?attempt=7113513&cmid=128394 2/12
Calculus 1l / Benchmark 3: Checkpoints 1-3 / Benchmark 3: Checkpoints 1-3
Startedon Sunday, February 1, 2026, 1:31 PM
State Finished
Completed on Sunday, February 1, 2026, 2:00 PM
Time taken 28 mins 21 secs
Grade 125.00 out of 125.00 (100%)
Question 1
Correct
4.17 points out of 4.17
The volume of a spherical balloon is increasing at a constant rate of 3 in® / 8. At which of the following rates is the radius
of the balloon increasing at the instant its radius is 2 inches?
Select one:
3 .
a. g-in/s
b. 5-in/s
9 .
C. 1ein/s
g .
d 3
-in/s in/s¥Y
Question 2
Correct
4.17 points out of 4.17
The deflection of a hardwood beam of length L is given by
D(z) = %:1:4 — 7Lz® + 5L%z?
where z is the distance from the fixed end of the beam. Which of the following values of x yields the maximum deflection?
Select one:
a. 0
b. Z=v
¢ S
d. % and %
https://moodle.straighterline.com/mod/quiz/review.php?attempt=7113513&cmid=128394 112
, 2/3/26, 6:17 PM Benchmark 3: Checkpoints 1-3; Attempt review
Question 3
Correct
4.17 points out of 4.17
For which of the following values of cwilly = = + % have arelative maximumat z = —5?
Select one:
a. -25
b. -5
c. 5
d. 25v
Question 4
Correct
4.17 points out of 4.17
If sinxz = €Y, 0 < x < m,which of the following is an expression for % interms of x?
Select one:
a. tanx
b. -cotx
c. cotx¥vy
d -tanx
Question 5
Correct
4.17 points out of 4.17
, o z2 41
Find the derivative of y = .
x2 —1
Select one:
3 —4z
(e =1
b. 1
C 48
(@ — 1
d 4
(% 17
https://moodle.straighterline.com/mod/quiz/review.php?attempt=7113513&cmid=128394 2/12
