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Test clasa a VII-a

Authored by Viorel Anton

Mathematics

7th Grade

Used 59+ times

Test clasa a VII-a
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21 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ordinea crescatoare a numerelor: a =  232\sqrt{3} ; b =  323\sqrt{2}  si c =  14\sqrt{14}  este :

c, a, b

b, c, a

a, b, c

a, c, b

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media geometrica a numerelor 12 si 27 este:

24

18

12

14

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media geometrica a numerelor
 a=35si b=180a=3\sqrt{5}si\ b=\sqrt{180}  

30

 565\sqrt{6}  

 3103\sqrt{10}  

 2152\sqrt{15}  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 a=243si b=123a=24\sqrt{3}si\ b=12\sqrt{3}  

Media aritmetica a numerelor este:

 ma=183m_a=18\sqrt{3}  

 ma=123m_a=12\sqrt{3}  

 ma=63m_a=6\sqrt{3}  

 ma=163m_a=16\sqrt{3}  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Daca media geometrica a doua numere este 6, iar unul din numere este 9, cel de-al doilea numar este:

6

8

4

10

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 2x2+(1)2=92x^2+\left(-1\right)^2=9  

Solutiile ecuatieide mai sus sunt:

 ±3\pm3  

 ±5\pm\sqrt{5}  

 ±1\pm1  

 ±2\pm2  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Determinati lungimea laturii unui patrat care are aria de 324 cm2

l=18

l=16

l=14

l=21

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