Question 1
Correct
6.25 points out
of 6.25
Question 2
Correct
6.25 points out
of 6.25
Multiply the polynomials by using the distributive property.
Select one:
a.
b.
c.
d.
Factor completely.
Select one:
a.
b.
c.
d.
(8t7u3)(3t4u5)
24t3u−2
11t11u8
24t11u8
24t28u15
9x4 + 21x3...
Straighterline MAT201 PRECALCULUS GRADED EXAM 1 (New Version August 2024)
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Question 1
Multiply the polynomials by using the distributive property.
Correct
6.25 points out (8t7 u3 )(3t4 u5 )
of 6.25
Select one:
a. 24t3 u −2
b. 11t11 u 8
c. 24t11 u 8
d. 24t28 u 15
Question 2
Factor completely.
Correct
6.25 points out 9x4 + 21x3 − 9x2 − 21x
of 6.25
Select one:
a. −3x(3x + 7)(x + 1)(x − 1)
b. 3x(3x + 7)(x + 1)(x − 1)
c. 3x(3x − 7)(x + 1)(x − 1)
d. 3x(3x + 7)(x + 1) 2
, Question 3
Express the set in interval notation.
Correct
Copycat
6.25 points out
of 6.25
−3
Select one:
a. [−3, ∞]
b. (−3, ∞)
c. (−∞, −3)
d. [−3, ∞)
Question 4
Solve the problem.
Correct
6.25 points out
A tool rental store charges a flat fee of $6.50 to rent a chain saw, and $3.75 for each day,
of 6.25 including the first. Write an equation that expresses the cost y of renting this saw if it is
rented for x days.
Select one:
a. y = 3.75(x + 6.50)
b. y = 6.50x + 3.75
c. y = 3.75x − 6.50
d. y = 3.75x + 6.50
Question 5
Solve the equation.
Correct
6.25 points out (m + 3)(m − 4) = −6
of 6.25
Select one:
a. {2, −3}
b. {−3, 4}
c. {−2, 3}
d. {3, −4}
, Question 6
Make an appropriate substitution and solve the equation.
Correct
Copycat
6.25 points out 9t − 16√t = 0
of 6.25
Select one:
3
a. {0, }
4
81
b. {0, }
256
4
c. {0, }
3
256
d. {0, }
81
Question 7
Perform the indicated operation. Write the answer in the form a + bi.
Correct
6.25 points out
8 + 9i
of 6.25 3−i
Select one:
15 35
a. − i
8 8
15 35
b. + i
8 8
3 7
c. − i
2 2
3 7
d. + i
2 2
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