Класна работа_3

Класна работа_3

8th Grade

17 Qs

quiz-placeholder

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Класна работа_3

Класна работа_3

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Medium

Created by

F. Marekova

Used 1+ times

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17 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 Изразът х+2 има смисъл при:Изразът\ \sqrt{х+2}\ има\ смисъл\ при:  

 х>2х>2  

 х2х\le-2  

 х2х\ge-2  

 х<2х<2  

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Стойността на израза

 (25+9).916\left(\sqrt{25}+\sqrt{9}\right).\sqrt{\frac{9}{16}}  е:

8

6

24

 294\frac{29}{4}  

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Кое от числата

 35 ; 42 ; 43 ; 2113\sqrt{5}\ ;\ 4\sqrt{2}\ ;\ 4\sqrt{3}\ ;\ 2\sqrt{11}  
е най-малко?

 353\sqrt{5}  

 424\sqrt{2}  

 434\sqrt{3}  

 2112\sqrt{11}  

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Стойността на израза

 32+4565+523\sqrt{2}+4\sqrt{5}-6\sqrt{5}+5\sqrt{2}  

 25+822\sqrt{5}+8\sqrt{2}  

 82258\sqrt{2}-2\sqrt{5}  

 6106\sqrt{10}  

 66  

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Внесете множител под корена

 5318-\frac{5}{3}\sqrt{18}  

 30-\sqrt{30}  

 50\sqrt{-50}  

 50-\sqrt{50}  

 30\sqrt{-30}  

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Колко са пермутациите на буквите в думата ВЕКТОР, в които гласните Е и О са една до друга?

10

2!.5!

2!.4!

6!.2!

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

В офис работят 8 жени и 7 мъже. Колко са всички възможности за директора на офиса да изпрати 4 жени и 3 мъже в командировка?

V84+V73V_8^4+V_7^3

C84 + C73C_8^4\ +\ C_7^3

C84 . C73C_8^4\ .\ C_7^3

V157V_{15}^7

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