Solving Polynomial Equations using Technology Answers
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What is the solution set of –(x + 4)(x – 5) ≤ 0?
A
(–4, 5)B
[–4, 5]C
(–∞, –4) U (5, ∞)D
(–∞, –4] U [5, ∞)2
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Jill is building a wooden-raised bed garden for her vegetables. She wants the frame to have dimensions x feet by x + 3 feet. If she wants the garden to have a maximum area of 50 square feet, what are the possible values of x?
A
[−8.728, 5.728]B
[1, 5.728]C
[−3, 5.728]D
(0, 5.728]3
The volume of a rectangular prism with a length of x meters, a width of x − 1 meters, and a height of x + 11 meters is no more than 180 cubic meters. What are the possible values of the length?
A
(−∞, −9) ∪ (−5, 4)B
(0, 4)C
(1, 4)D
[1, 4)4
What is the solution set for the inequality x2(x – 4)(x + 5) ≤ 13?
A
[–4.734, –1.658] U [1.892, 3.501]B
[–1.658, 1.892]C
(–∞, –4.734] U [–1.658, 1.892] U [3.501, ∞)D
(–4.734, –1.658) U (1.892, 3.501)5
What is the solution of the inequality x3 + 3x2 > 7x + 6?
A
OptionB
OptionC
OptionD
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