5 вариант

5 вариант

9th Grade

10 Qs

quiz-placeholder

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5 вариант

5 вариант

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Medium

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

В арифметической прогрессии an известно, что a1=65 и d=-5. Вычислите а7

0

6

√5

-√5

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Для арифметической прогрессии 2; 9; ... найдите ее одиннадцатый член.

108

20

72

79

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

В геометрической прогрессии 2; 6; ... найдите седьмой член

1236

1560

1458

1322

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Решите систему уравнений:

0,5x-y=2

x2-2y=-1

Нет решений

(-2;3)

(6;1)

(4;0)

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Расположите арифметические прогрессии в порядке возрастания их шестых членов:

1) -4; 2; ...

2) 1; 4; ...

3) -10; -1; ...

3;1;2

1;2;3

2;1;3

2;3;1

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

Используя формулы комбинаторики, укажите значения выражений:

1-B, 2-A, 3-C

1-C, 2-B, 3-A

1-A, 2-C, 3-B

1-B, 2-C, 3-A

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

Установите соответствие между арифметическими прогрессиями и их десятыми членами

1-С, 2-А, 3-В

1-В, 2-А, 3-С

1-В, 2-С, 3-А

1-С, 2-В, 3-А

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