Предмет: Алгебра, автор: wba90547

Сума перших шести членів арифметичної прогресії дорівнює 3, а перший член -7.
Знайти шостий член прогресії
А) -10
Б) 8
В) 3
Г) 10

Ответы

Автор ответа: Amigo3
0

Ответ: 0,5*6*(-7+а6)=3 или а6-7=1 или а6=8. Ответ б).

Объяснение:

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Под текст надо ответить на вопросы...

1)Mrs Van Bliven said that she didn`t hear the phone ls this possible?

2)Was the window broken from the inside or the outside?Does this help any to the suspects?

3)Is there any evidence that Brigitte broke the window?

4)Do you think that Brigitte broke the wondow?

5)The police found the necklace in the room.

Where do you think they found it?
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