test radicali

test radicali

7th Grade

14 Qs

quiz-placeholder

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test radicali

test radicali

Assessment

Quiz

Mathematics

7th Grade

Hard

Created by

Adriana Ftadeev

Used 47+ times

FREE Resource

14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Să se ordoneze crescător numerele:

22; 4; 0; 28; 3; 17;322\sqrt{2};\ -4;\ 0;\ -2\sqrt{8};\ 3;\ -\sqrt{17};-3\sqrt{2}

4; 17; 28;32; 0; 3; 22; -4;\ -\sqrt{17};\ -2\sqrt{8};-3\sqrt{2};\ 0;\ 3;\ 2\sqrt[]{2};\

28;32;17; 4; 0; 22; 3-2\sqrt{8};-3\sqrt{2};-\sqrt{17};\ -4;\ 0;\ 2\sqrt{2};\ 3

28; 32; 4;17; 0; 22;3-2\sqrt{8};\ -3\sqrt{2};\ -4;-\sqrt{17};\ 0;\ 2\sqrt{2};3

17; 28; 32; 4; 0; 22; 3-\sqrt{17};\ -2\sqrt{8};\ -3\sqrt{2};\ -4;\ 0;\ 2\sqrt{2};\ 3

2.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Calculați:

 40028(2)2\sqrt{400}-\sqrt{2^8}-\sqrt{\left(-2\right)^2} 

10

2

6

8

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Fie

 a=62+82+252152.a=\sqrt{6^2+8^2}+\sqrt{25^2-15^2}.  Atunci a =...

30

4

9

20

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Fie

 x=0.04x=\sqrt{0.04} . Atunci: 

 xNx\in N  

 xQx\notin Q  

 xQx\in Q  

 xZx\in Z  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Dacă:

 52 =xy-5\sqrt{2}\ =x\sqrt{y}  . Atunci: 

x=-1; y=50

x=1; y=50

x=5; y=-2

x= 5; y= 2

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Câte numere iraționale sunt în mulțimea: {1; 2;3;4;...;99}\left\{\sqrt{1};\ \sqrt{2};\sqrt{3};\sqrt{4};...;\sqrt{99}\right\}  


90

99

9

10

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (2)4(3)5(5)3=xy\sqrt{\left(-2\right)^4\cdot\left(-3\right)^5\cdot\left(-5\right)^3}=x\sqrt{y}  

Dacă:

x=180; y=15

x=-180; y=15

x=60; y=30

x=-180; y=-15

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