Класна работа_4

Класна работа_4

8th Grade

17 Qs

quiz-placeholder

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Класна работа_4

Класна работа_4

Assessment

Quiz

Mathematics

8th Grade

Medium

Created by

F. Marekova

Used 1+ times

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17 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 Изразът   х+3   има смисъл при:Изразът\ \ \ \sqrt{х+3}\ \ \ има\ смисъл\ при:  

 х<х<  

 х >3х\ >3  

 х3х\le-3  

 х3х\ge-3  

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Стойността на израза  (36+9).49\left(\sqrt{36}+\sqrt{9}\right).\sqrt{\frac{4}{9}}   е:

6

12

14

28

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Кое от числата  45 ; 54 ; 52 ; 434\sqrt{5}\ ;\ 5\sqrt{4}\ ;\ 5\sqrt{2}\ ;\ 4\sqrt{3}  

е най-малко?

 454\sqrt{5}  

 545\sqrt{4}  

 525\sqrt{2}  

 434\sqrt{3}  

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Стойността на израза
   52+37+4267  \ 5\sqrt{2}+3\sqrt{7}+4\sqrt{2}-6\sqrt{7}\ \   е:

 37+923\sqrt{7}+9\sqrt{2}  

 92 379\sqrt{2\ }-3\sqrt{7}  

 33  

 6146\sqrt{14}  

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Внесете множител под корена  528-\frac{5}{2}\sqrt{8}  

 50\sqrt{-50}  

 50-\sqrt{50}  

 20\sqrt{-20}  

 20-\sqrt{20}  

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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

3!.4!

15

3!.5!

7!.3!

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

От 11 войници и 9 офицери се избира патрул от 3 войници и 2 офицери. Колко различни патрули могат да се съставят?

 C113 . C92C_{11}^3\ .\ C_9^2  

 C113 + C92C_{11}^3\ +\ C_9^2  

 V113 . V92V_{11}^3\ .\ V_9^2  

 V205V_{20}^5  

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