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повторение алгебра 9 класс

Authored by Айгуль imanalina.83@mail.ru

Mathematics

1st - 10th Grade

Used 26+ times

повторение алгебра 9 класс
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12 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Решите систему нарвенств

(-6; -3)

[3; 6]

[-6; -3]

(3;6)

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Решите наравенство

Media Image
Media Image
Media Image
Media Image

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Дана функция y=x2+3x, найдите f(-3)?

-18

0

9

-9

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Упростите выражение 1x21x4\frac{1}{x^2}\cdot\frac{1}{x^{-4}}  и найдите его значение при  x=3x=-3  

-9

9

 19-\frac{1}{9}  

 13\frac{1}{3}  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Выберете неверное равенство:

16=4\sqrt{16}=4

0,4=0,2\sqrt{0,4}=0,2

725=27-\sqrt{25}=2

(15)2=15\sqrt{\left(-15\right)^2}=15

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Решить уравнение x24=0x^2-4=0  

4

-4

2;-2

0;2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Найти дискриминант квадратного уравнения 3xx2+10=03x-x^2+10=0  

49

-31

-119

46

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