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Teza cls. aVIII-a

Authored by Alexandru Camelia Nicoleta

Mathematics

8th Grade

Used 6+ times

Teza cls. aVIII-a
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul calculului   23:32\sqrt{3}:\sqrt{3}  este:

1

 3\sqrt{3}  

2

0

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Descompuneţi : x2 – 144.

( x-12 )2

( x+12 )2

( x+12 )( x-12 )

x + 12

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Suma muchiilor unui cub este 24cm. Calculaţi muchia cubului .

2 cm

12cm

8cm

6 cm

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculaţi ( 2yx + 3xy ) : x.

5x

5y

6

5x2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

O dreaptă este paralelă cu un plan dacă este …. cu o dreaptă din plan.

identică

necoplanară

paralelă

perpendiculară

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Calculaţi:   (253231)151\left(\frac{2}{\sqrt{5}-\sqrt{3}}-\frac{2}{\sqrt{3}-1}\right)\cdot\frac{1}{\sqrt{5}-1}  

 3\sqrt{3}  

1

 53\sqrt{5}-\sqrt{3}  

0

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Pe planul dreptunghiului ABCD cu dimensiunile L = 4 cm şi l = 3 cm se ridică perpendiculara AM = 5 cm.Distanta de la M la C este egala cu....................

 52 cm5\sqrt{2}\ cm 

10cm

4 cm

5 cm

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