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Question text
Dado el sistema de inecuaciones:<br /><span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced close=¨}¨ open=¨¨»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»§lt;«/mo»«mn»0«/mn»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»§lt;«/mo»«mn»0«/mn»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /><br />indica cuál de las siguientes es la expresión, en forma de intervalo, de la solución del sistema<br />
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One or multiple answers?
Multiple answers allowed
One answer only
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a., b., c., ...
A., B., C., ...
1., 2., 3., ...
i., ii., iii., ...
I., II., III., ...
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Algorithm
Choice 1
Answer
«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»[«/mo»«mo»-«/mo»«mi»#a«/mi»«mo»,«/mo»«mo»-«/mo»«mi»#b«/mi»«mo»]«/mo»«mo»§#8746;«/mo»«mo»[«/mo»«mi»#b«/mi»«mo»,«/mo»«mi»#a«/mi»«mo»]«/mo»«/math»
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
50%
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33.33333%
30%
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20%
16.66667%
14.28571%
12.5%
11.11111%
10%
5%
-5%
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-11.11111%
-12.5%
-14.28571%
-16.66667%
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-33.33333%
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-66.66667%
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-83.33333%
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Feedback
Atención, fíjate que las desigualdades son estrictas y, por tanto, los intervalos no pueden ser cerrados.
Choice 2
Answer
«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»(«/mo»«mo»-«/mo»«mo»§#8734;«/mo»«mo»,«/mo»«mo»-«/mo»«mi»#b«/mi»«mo»)«/mo»«mo»§#8746;«/mo»«mo»(«/mo»«mi»#b«/mi»«mo»,«/mo»«mo»+«/mo»«mo»§#8734;«/mo»«mo»)«/mo»«/math»
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
50%
40%
33.33333%
30%
25%
20%
16.66667%
14.28571%
12.5%
11.11111%
10%
5%
-5%
-10%
-11.11111%
-12.5%
-14.28571%
-16.66667%
-20%
-25%
-30%
-33.33333%
-40%
-50%
-60%
-66.66667%
-70%
-75%
-80%
-83.33333%
-90%
-100%
Feedback
Atención, no todos los valores de este intervalo son solución de la segunda inecuación.
Choice 3
Answer
«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced»«mrow»«mo»-«/mo»«mi»#a«/mi»«mo»,«/mo»«mo»-«/mo»«mi»#b«/mi»«/mrow»«/mfenced»«mo»§#8746;«/mo»«mfenced»«mrow»«mi»#b«/mi»«mo»,«/mo»«mi»#a«/mi»«/mrow»«/mfenced»«/math»
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
50%
40%
33.33333%
30%
25%
20%
16.66667%
14.28571%
12.5%
11.11111%
10%
5%
-5%
-10%
-11.11111%
-12.5%
-14.28571%
-16.66667%
-20%
-25%
-30%
-33.33333%
-40%
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-60%
-66.66667%
-70%
-75%
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-83.33333%
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Feedback
Muy bien. Esta es la solución del sistema.
Choice 4
Answer
«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced»«mrow»«mo»-«/mo»«mo»§#8734;«/mo»«mo»,«/mo»«mo»-«/mo»«mi»#a«/mi»«/mrow»«/mfenced»«mo»§#8746;«/mo»«mfenced»«mrow»«mi»#a«/mi»«mo»,«/mo»«mo»+«/mo»«mo»§#8734;«/mo»«/mrow»«/mfenced»«/math»
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
50%
40%
33.33333%
30%
25%
20%
16.66667%
14.28571%
12.5%
11.11111%
10%
5%
-5%
-10%
-11.11111%
-12.5%
-14.28571%
-16.66667%
-20%
-25%
-30%
-33.33333%
-40%
-50%
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-66.66667%
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-75%
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-83.33333%
-90%
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Feedback
Atención, los valores que pertenecen a esta unión de intervalos no son solución de la segunda inecuación.
Choice 5
Answer
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
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33.33333%
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16.66667%
14.28571%
12.5%
11.11111%
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Feedback
Choice 6
Answer
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
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40%
33.33333%
30%
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16.66667%
14.28571%
12.5%
11.11111%
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Feedback
Choice 7
Answer
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
50%
40%
33.33333%
30%
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16.66667%
14.28571%
12.5%
11.11111%
10%
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-12.5%
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-16.66667%
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-66.66667%
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Feedback
Combined feedback
For any correct response
For any partially correct response
Options
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For any incorrect response
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Penalty for each incorrect try
0%
10%
20%
25%
30%
33.33333%
50%
100%
Hint 1
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Hint 2
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Created
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on
Wednesday, 12 June 2013, 1:12 PM
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on
Wednesday, 12 June 2013, 1:12 PM
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