
5 вариант
Quiz
•
Mathematics
•
9th Grade
•
Medium
B B
Used 12+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
В арифметической прогрессии an известно, что a1=6√5 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
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
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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