intervale

intervale

8th Grade

10 Qs

quiz-placeholder

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intervale

intervale

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Hard

Created by

anca maria

Used 64+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 3;2(7;1)=\lceil-3;2\rceil\cup\left(-7;1\right)=  

(-3;1)

(-7:2)

(-7;2]

[-3;1]

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

 A={xR, 2x<5}A=\left\{x\in R,\ -2\le x<5\right\}  A=

(-2;5]

[-2;5]

(-2;5)

[-2;5)

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 [8;3)(4;6]=\left[-8;3\right)\cap\left(-4;6\right]=  

(-4;3)

[-8;6]

[-4;3]

(-8;-4)

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 123+134+145+......+12930=\frac{1}{2\cdot3}+\frac{1}{3\cdot4}+\frac{1}{4\cdot5}+......+\frac{1}{29\cdot30}=  

 230\frac{2}{30}  

 715\frac{7}{15}  

 430\frac{4}{30}  

 615\frac{6}{15}  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (1;2)[0;3]=\left(-1;2\right)-\left[0;3\right]=  

[-1;0]

(-1;0)

[-1;0)

(0;2)

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Cel mai mare numar intreg din intervalul

(-1;7) este...

7

0

1

6

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (3;2)(1;3)=\left(-3;2\right)\cap\left(-1;3\right)=  

[-1;2]

(-3;3)

[2;3]

(-1;2)

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