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Clasa 9 Evaluare

Authored by Liuba Moldovanu

Mathematics

10th Grade

Used 18+ times

Clasa 9 Evaluare
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Numerele -2 și 15 aparțin concomitent intervalului de numere reale

(2;15)\left(-2;15\right)

(-2;15]

[2;15)\left[-2;15\right)

[2;15]\left[-2;-15\right]

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dacă

 x>yx>y  atunci

 x2>y2x-2>y-2  

 x2<y2x-2<y-2  

 x2y2x-2\ge y-2  

 x2y2x-2\le y-2  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Dacă  X5\ left | x \ right | \ le5  Atunci x aparține intervalului

 (5;)\left(5;\infty\right)  

[-5;5]

 (;5]\left(-\infty;5\right]  

(-5:5)

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Cea mai mică soluție întreagă a inecuației

 5x+3105x+3\ge10  este

 {3}\left\{3\right\}  

 {2}\left\{-2\right\}  

 {2}\left\{2\right\}  

 {3}\left\{-3\right\}  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Rezolva

 5<52x<9-5<5-2x<9  

 (5;2)\left(-5;2\right)  

 (2;5)\left(-2;5\right)  

 (4;5)\left(4;5\right)  

 (5;4)\left(-5;4\right)  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 x23x100x^2-3x-10\le0  

 [2;5]\left[-2;5\right]  

 (2;5)\left(-2;5\right)  

 (5;2)\left(-5;2\right)  

[-5;2]

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 (x2)(x+3)<0\left(x-2\right)\left(x+3\right)<0  

 (3;2)\left(-3;2\right)  

 (2;3)\left(-2;3\right)  

 [3;2]\left[-3;2\right]  

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