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математика

Authored by Александра Миронова

Mathematics

8th Grade

математика
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13 questions

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1.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

– 4

– 2

23

– 23

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

7x-4,5=5x+2,5

-3,5

0.5

3,5

-2

1,2

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

2m+(0,5m-2,5)-(4,7m+3)-3,4m-2,8 ; при m= -2

2,9

-19,5

-0,4

1,7

0,2

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Прямые m и n параллельны. Найдите ∠3,

если ∠1 = 59°, ∠2 = 38°. Ответ дайте в градусах.

59

73

83

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Media Image

Окружность с центром в точке O описана около равнобедренного треугольника ABC ,

в котором AB = BC и ∠ ABC = 32°. Найдите величину угла BOC . Ответ дайте в градусах.

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Вычислите:

-4

10

2

16

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Решите уравнение 4х2 - 100 = 0

5

-5

25

5 или - 5

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