
pregatire pentru teza clasa 8
Authored by Dalina Zele
Mathematics
8th Grade
Used 10+ times

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13 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Rezultatul calculului: 1,2+ 0,2 ∙ 2 – 2
25/20
5/2
20/50
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Rezultatul calculului: (4xy3 – 8yx2) : (-4y x).
y2+2x
–y2-2x
–y2+2x
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Rezultatul calculului:
-28√2
4√2-52√3
-8√2
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Mulţimea A ={x Є R | x > 12} scrisă sub formă de interval.
[12;+∞]
(2;+∞)
(12;+∞)
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Media aritmetică a numerelor a = 4-√5 şi b = 4+√5 .
2
8
4
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
În paralelipipedul dreptunghic ABCD, avem AA' = AB =5√2
cm şi BC=6 cm. Aflaţi aria AA’B’B.
25
50
10
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Să se calculeze: (x - 2)2 – (x + 3) (x - 3).
-4x+13
-4x-13
4x+13
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