Неравенства на НВО 30.04.2020

Неравенства на НВО 30.04.2020

7th Grade

10 Qs

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Неравенства на НВО 30.04.2020

Неравенства на НВО 30.04.2020

Assessment

Quiz

Mathematics

7th Grade

Medium

Created by

Юлия Генова

Used 6+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Решенията на неравенството  2x  33>2x+32\frac{2x\ -\ 3}{3}>\frac{2x+3}{2}  са:

 x<17x<-17  

 x<7,5x<-7,5  

 x>7,5x>-7,5  

 x>3x>3  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Решенията на неравенството 
 186x018-6x\ge0  
са числата от интервала:

 [3;+)\left[3;+\infty\right)  

 (;3]\left(-\infty;-3\right]  

 (;3]\left(-\infty;3\right]  

 (3;+)\left(-3;+\infty\right)  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Кое от числата е решение на неравенството 37 + x < 5x – 7?

11

-11,1

11,1

-11

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Намерете сбора на целите отрицателни числа, решения на неравенството x(x – 1) < x2 + 4,7.

-10

0

-15

-5

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Решенията на неравенството

–2x + 3 > 0

се представят с интервала:

(1;+)\left(-1;+\infty\right)

(1,5;+)\left(1,5;+\infty\right)

(;1,5)\left(-\infty;1,5\right)

(;1)\left(-\infty;1\right)

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Решенията на неравенството

4x – 1 ≤ (x + 2)2 – x2 са:

няма решение

х5х\le5

всяко рационално число

ь0ь\le0

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Кое от числата е решение на неравенството

–5х > 15?

00

2,5-2,5

3-3

3,5-3,5

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