# Mathematics Questionnaire

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III
Test: Math 178 Final Exam –
Intersession 2022
Question 25 of 25
This test: 25 point(s)
possible
This question: 1
point(s) possible
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Find the number of units that must be produced and sold in order to yield the maximum profit, given the equations below for revenue and cost.
R(x) = 4x
C(x) = 0.01x² +0.9x +40
A. 155 units
B. 490 units
O C. 245 units
D. 310 units
лу
Use the graph of G shown to the right to find the limit. If necessary, state that the
limit does not exist.
ob
6-
lim G(x)
0
x+1
a
X
Select the correct choice below and, if necessary, fill in the answer box to complete
6-
O A.
lim G(x) =
X-1
8
ID
B. The limit does not exist.
When an object is dropped on a certain earth-like planet, the distance it falls in t seconds, assuming that air resistance is negligible, is given by
s(t) = 1312
where s(t) is in feet. Suppose that a medic’s reflex hammer is dropped from a hovering helicopter. Find (a) how far the hammer falls in 4 sec, (b) how fast the hammer
is traveling 4 sec after being dropped, and (c) the hammer’s acceleration after it has been falling for 4 sec.
feet in 4 seconds.
(a) The hammer falls
ft/sec 4 seconds after being dropped.
(b) The hammer is traveling
ft/sec/sec after it has been falling for 4 sec.
(c) The hammer’s acceleration is
Find f such that the given conditions are satisfied.
f'(x) = x² + 9, f(0) = 6
2
o
3
х
O A. f(x) =
+ 9x
3

3
OB. f(x) = x2 + 9x² + 6
OC. f(x) = 3
W-6
3
3
Х
+ 9x + 6
3
OD. f(x)= x + 9x +6
Evaluate.
f(3x® -73°+9) dx
7x
8
Зх
7x
7
9
-x4
3
7
9
ОВ.

4
-x +
3
3
O A. Oxº-**** +9x+C
***-**** +9x+C
X-
– *****
O D. 9×09 – x* +9x+C
7
9
C.
4
-x’ + 9x + C
4
7
x + + C
4
4
III
Test: Math 178 Final
Exam – Intersession
2022
Question 21 of
25
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possible
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question:
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A particle is released during an experiment. Its speed t minutes after release is given by v'(t) = – 0.25t+8t, where v(t) is in
kilometers per minute. How far does the particle travel during the first 14 minutes?
A. 882.00 km
B. 63.00 km
C. 784 km
D. 555.33 km
Test: Math 178 Final
Exam – Intersession
2022
Question 17 of
25
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25 point(s)
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question:
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A grocery store estimates that the weekly profit (in dollars) from the production and sale of x cases of soup is given by
P(x) = – 5,500+ 9.5x -0.0018x? and currently 1,400 cases are produced and sold per week. Use the marginal profit to
estimate the increase in profit if the store produces and sells one additional case of soup per week. Round to the nearest
cent.
A. \$5.52
B. \$4.46
C. \$4,272.00
D. \$6.98
Test: Math 178 Final Exam – Intersession 2022
< Question 18 of 25 >
This test: 25 point(s) possible
This question: 1 point(s) possible
Graph the function and then find the specified limits. When necessary, state that the limit does not exist.
3x + 12, for x< - 4 F(x) = ; Find lim F(x), lim F(x), lim F(x). X-4- X-4* X-4 X, for x2 -4 Choose the correct graph below. A. O B. OC. D. >
10
Find
lim F(x). Select the correct choice below and, if necessary, fill in the answer box within your choice.
-寸1TX
O A.
lim F(x) =
X-4-
B. The limit does not exist.
Find lim F(x). Select the correct choice below and, if necessary, fill in the answer box within your choice.
x+-4
A.
lim F(x) =
X-4+
B. The limit does not exist.
Find lim F(x). Select the correct choice below and, if necessary, fill in the answer box within your choice.
X-4
OA
lim F(x)=
X-4
B. The limit does not exist.
Test: Math 178 Final Exam – Intersession 2022
< Question 18 of 25 >
This test: 25 point(s) possible
This question: 1 point(s) possible
Graph the function and then find the specified limits. When necessary, state that the limit does not exist.
3x + 12, for x< - 4 F(x) = ; Find lim F(x), lim F(x), lim F(x). X-4- X-4* X-4 X, for x2 -4 Choose the correct graph below. A. O B. OC. D. >
10
Find
lim F(x). Select the correct choice below and, if necessary, fill in the answer box within your choice.
-寸1TX
O A.
lim F(x) =
X-4-
B. The limit does not exist.
Find lim F(x). Select the correct choice below and, if necessary, fill in the answer box within your choice.
x+-4
A.
lim F(x) =
X-4+
B. The limit does not exist.
Find lim F(x). Select the correct choice below and, if necessary, fill in the answer box within your choice.
X-4
OA
lim F(x)=
X-4
B. The limit does not exist.
Test: Math 178 Final
Exam – Intersession
2022
Question 2 of 25
This test:
25 point(s)
possible
This
question:
1 point(s)
possible
Find the doubling time for an amount invested at a growth rate 12% per year compounded continuously.
A. 5.8 years
B. 5.0 years
C. 8.3 years
D. 7.4 years
Test: Math 178 Final
Exam – Intersession
2022
Question 2 of 25
This test:
25 point(s)
possible
This
question:
1 point(s)
possible
Find the doubling time for an amount invested at a growth rate 12% per year compounded continuously.
A. 5.8 years
B. 5.0 years
C. 8.3 years
D. 7.4 years
Find the equation of the tangent line at x = 7 for f(x) = 6-x?. Write the answer in the form y=mx+b.
O A. y = 14x-55
B. y= – 14x + 55
C. y = 7x + 55
OD. y= – 2x
оо

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25 Questions

Tags:
mathematics

equations

revenue and cost

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