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DSC1520 ASSESSMENTS 4 SEMESTER 1 2024 Quantitative Modelling I - DSC1520
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DSC1520 ASSESSMENTS 4 SEMESTER 1 2024 Quantitative Modelling I - DSC1520
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2/27/24, 9:02 PM Assessment 4BMZ ACADEMY 2024
DSC1520-24-S1 Welcome Message Assessment 4
QUIZ
Question 1
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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 0612621185/068053 8213/0717513144
https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php?attempt=15005249&cmid=842665 1/7
, 2/27/24, 9:02 PM Assessment 4
BMZ ACADEMY 2024
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 0612621185/068053 8213/0717513144
https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php?attempt=15005249&cmid=842665 2/7
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