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INTERVALE

Authored by t t

Mathematics

8th Grade

Used 50+ times

INTERVALE
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15 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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Numarul  a   reprezentat   pe  axa  este:

207-\frac{20}{7}

25-2\sqrt{5}

132-\frac{13}{2}

43-4\sqrt{3}

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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Cel  mai  mic  si  cel  mai  mare numar intreg din intervalul din desen sunt:

4 si 2-\ 4\ si\ \ 2

4 si 1-\ 4\ si\ 1

3 si 2-\ 3\ si\ 2

3 si 1-\ 3\ si\ 1

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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Suma  numerelor  intregi  din  intervalul  din  figura  este:

15

8

7

0

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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Intervalului  din  figura  ii  corespunde  multimea:

{ xRx\in R | x8x\ge8 }

{ xRx\in R | x8x\le8 }

{ xRx\in R | x<8x<8 }

{ xRx\in R | x>8x>8

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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Intervalului din figura ii corespunde  multimea:

{ xRx\in R | 5<x<+4-5<x<+4 }

{ xRx\in R | 5x+4-5\le x\le+4 }

{ xRx\in R | 5<x+4-5<x\le+4 }

{ xRx\in R | 5x<+4-5\le x<+4 }

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Multimii  {xR : 2x<3}\left\{x\in R\ :\ -\sqrt{2}\le x<\sqrt{3}\right\}  
ii corespunde intervalul:

 [2;3]\left[-\sqrt{2};\sqrt{3}\right]  

 (2;3)\left(-\sqrt{2};\sqrt{3}\right)  

( 2;3-\sqrt{2};\sqrt{3}  ]

[ 2;3-\sqrt{2};\sqrt{3} )

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (2;+3)[0;72]\left(-2;+3\right)\cap\left[0;\frac{7}{2}\right]  
 este egal cu:este\ egal\ cu:  

(-2 ; 72\frac{7}{2}  ]

[-2 ; 72\frac{7}{2}  )

[0;3)

( -2 ; 0]

 ϕ\phi  

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