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# Which of the following inequalities has a solution set that,

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Manager
Joined: 21 Mar 2007
Posts: 73
Which of the following inequalities has a solution set that, [#permalink]

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30 May 2008, 06:20
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Which of the following inequalities has a solution set that, when graphed on the number line, is a single line segment of finite length?

A) x^4 >=(greater than or equal to) 1
B) x^3 =< 27
C) x^2 >= 16
D) 2 =< abs(x) =< 5
E) 2 =< 3x + 4 =< 6

Answer is E, dont understand why it cant be D
VP
Joined: 10 Jun 2007
Posts: 1438

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30 May 2008, 07:40
japped187 wrote:
Which of the following inequalities has a solution set that, when graphed on the number line, is a single line segment of finite length?

A) x^4 >=(greater than or equal to) 1
B) x^3 =< 27
C) x^2 >= 16
D) 2 =< abs(x) =< 5
E) 2 =< 3x + 4 =< 6

Answer is E, dont understand why it cant be D

Because it has two line segments, not one.
D translate to:
-5 <= x <= -2 and 2 <= x <= 5
Re: Infinite values PS   [#permalink] 30 May 2008, 07:40
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