2/27/24, 9:02 PM Assessment 4
DSC1520-24-S1 Welcome Message Assessment 4
QUIZ
Question 1
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Marked out of 7.00
Integrate the function
3
f (x) = ∫ (2 + 2x + x ) dx.
a.
4
2 x
2x + x + + C
4
b.
4
2 x
2 + 3 + + C
4
c. 2 + 3x + C
d. 2 + 3x
2
+ C
Clear my choice
Question 2
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Integrate the function
10
t − √t
f (t) = .
3
t
a.
8
t 2
+ + c
8 3
3√ t
b.
9 −0,5
10t −0,5t
2
3t
c. 7t
6
+ 2, 5t
−3,5
d. 0, 125t
8
− 0, 67t
−1,5
+ c
Clear my choice
CONTACT @ 061 262 1185/0717513144/068 053 8213
https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php?attempt=15005249&cmid=842665 1/7
, 2/27/24, 9:02 PM Assessment 4
Question 3
Answer saved
Marked out of 7.00
Calculate the integral
e
ln x
∫ dx.
1
x
a. 0, 5
b. −0, 5
c. 2
d. −2
Clear my choice
Question 4
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A tool hiring company has estimated that the rate of increase in the maintenance cost of power drills is given by the equation
1,5
C (t) = 2 + t
where t is the time that the company is in operation for weeks. Calculate the total maintenance cost during the first four
weeks.
a. 20, 8.
b. 22, 36.
c. 10.
d. 32, 36.
Clear my choice
CONTACT @ 061 262 1185/0717513144/068 053 8213
https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php?attempt=15005249&cmid=842665 2/7
DSC1520-24-S1 Welcome Message Assessment 4
QUIZ
Question 1
Answer saved
Marked out of 7.00
Integrate the function
3
f (x) = ∫ (2 + 2x + x ) dx.
a.
4
2 x
2x + x + + C
4
b.
4
2 x
2 + 3 + + C
4
c. 2 + 3x + C
d. 2 + 3x
2
+ C
Clear my choice
Question 2
Answer saved
Marked out of 7.00
Integrate the function
10
t − √t
f (t) = .
3
t
a.
8
t 2
+ + c
8 3
3√ t
b.
9 −0,5
10t −0,5t
2
3t
c. 7t
6
+ 2, 5t
−3,5
d. 0, 125t
8
− 0, 67t
−1,5
+ c
Clear my choice
CONTACT @ 061 262 1185/0717513144/068 053 8213
https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php?attempt=15005249&cmid=842665 1/7
, 2/27/24, 9:02 PM Assessment 4
Question 3
Answer saved
Marked out of 7.00
Calculate the integral
e
ln x
∫ dx.
1
x
a. 0, 5
b. −0, 5
c. 2
d. −2
Clear my choice
Question 4
Answer saved
Marked out of 7.00
A tool hiring company has estimated that the rate of increase in the maintenance cost of power drills is given by the equation
1,5
C (t) = 2 + t
where t is the time that the company is in operation for weeks. Calculate the total maintenance cost during the first four
weeks.
a. 20, 8.
b. 22, 36.
c. 10.
d. 32, 36.
Clear my choice
CONTACT @ 061 262 1185/0717513144/068 053 8213
https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php?attempt=15005249&cmid=842665 2/7
