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Straighterline MAT201 PRECALCULUS MIDTERM GRADED EXAM (New Version August 2024)
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Question 1 Correct 5.00 points out of 5.00 Subtract the polynomials and simplify. Select one: a. b. c. d. ( 2 7 p2 − 1 2 pq + 134 q 2 + 14) − ( 194 p2 + 4 7 pq − 154 q 2 + 11) − 5 − pq + + 25 14 p2 15 14 4 7 q 2 13 + pq − + 25 14 p2 1 14 1 7 q 2 − 5 − pq + + ...

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  • August 21, 2024
  • 31
  • 2024/2025
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  • straighterline precalculus midterm graded exam ne

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Straighterline PRECALCULUS MIDTERM GRADED EXAM (New Version August 2024)
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Question 1
Subtract the polynomials and simplify.
Correct
2 1 3 2 9 4 5 2
5.00 points out
( p2 − pq + q + 14) − ( p2 + pq − q + 11)
of 5.00 7 2 14 14 7 14

Select one:
5 2 15 4
a. − p − pq + q 2 + 25
14 14 7
13 2 1 1
b. p + pq − q 2 + 25
14 14 7
5 2 15 4
c. − p − pq + q 2 + 3
14 14 7
5 2 1 1
d. − p + pq − q 2 + 25
14 14 7




https://moodle.straighterline.com/mod/quiz/review.php?attempt=5801814&cmid=82690 1/31

,8/21/24, 6:11 PM Midterm Exam: Attempt review




Question 2
Factor completely.
Correct
1
5.00 points out (8 − x2 ) 1/2 + x ⋅ (8 − x2 ) −1/2 (−8x)
of 5.00 8

Select one:
2(x − 2)(x + 2)
a. −
(8 − x2 ) 1/2
x2
b.
(8 − x2 ) 1/2
x2
c. −
(8 − x2 ) 1/2
2(x2 − 4)
d.
(8 − x2 ) 1/2




Question 3
Solve the inequality. Write the solution set in interval notation.
Correct

5.00 points out 20 > 3x and 11 + 2x ≥ 2
of 5.00
Select one:
9 20
a. ( − ∞, − ) ∪ [ , ∞)
2 3
9 20
b. [ − , )
2 3
c. {}

20 9
d. [ − , )
3 2




https://moodle.straighterline.com/mod/quiz/review.php?attempt=5801814&cmid=82690 2/31

,8/21/24, 6:11 PM Midterm Exam: Attempt review




Question 4
Solve the problem.
Correct

5.00 points out
A train ride is $2.85 per ride. A commuter can purchase an unlimited-ride card for $45 per
of 5.00 month. How many rides are required for a commuter to save money by buying the card?

Select one:
a. 22 rides
b. 18 rides
c. 16 rides
d. 20 rides




Question 5
Solve the problem.
Correct

5.00 points out The daily profit in dollars made by an automobile manufacturer is
of 5.00
P (x) = −40x2 + 2240x − 17, 000

where x is the number of cars produced per shift. Find the maximum possible daily profit.

Select one:
a. $13, 642
b. $31, 360
c. $14, 360
d. $13, 211




https://moodle.straighterline.com/mod/quiz/review.php?attempt=5801814&cmid=82690 3/31

, 8/21/24, 6:11 PM Midterm Exam: Attempt review




Question 6
Solve the equation.
Correct
−−−−− −−−−
5.00 points out √11 − p − √2 + p = −1
of 5.00
Select one:
a. {±2}
b. {7, 2}

c. {2}
d. {7}




Question 7
Simplify the expression.
Correct
−−−−
5.00 points out √−144
−−−−
of 5.00 √−36

Select one:
a. 2i
b. 2
c. −2i
1
d.
2




https://moodle.straighterline.com/mod/quiz/review.php?attempt=5801814&cmid=82690 4/31

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