Предмет: Алгебра, автор: bakowa

найдите девятый член арифметической прогрессий ,если а) а8=126, а10=146 б) а8= -64 а10= -50

Ответы

Автор ответа: Vanyline

0

1) a8+2d=a10

d=(a10-a8)/2=10

a9=a8+d=136

2)a8+2d=a10

d=(a10-a8)/2=7

a9=a8+d=-57

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Экономика, автор: настясми

Если цена на товар выросла на 18%, а объём его спроса при этом возрос на 15%, то спрос данного товара
Выберите один ответ:
О неэластичный
О абсолютно эластичный
О абсолютно неэластичный
О эластичный

6 лет назад

Предмет: Английский язык, автор: 7372829

помогите срочно по Анг срочно мне нужна ваша ПОМОЩЬ ВАГА ПОМОЩЬ ПОЖАЛУЙСТА ПОЖАЛУЙСТА

6 лет назад

Предмет: Английский язык, автор: Аноним

Read the description of the zodiac signs and match a character trait to its definition.

Fire sign (Aries):
These people are very ambitious and optimistic. Aries work hard to become successful or wealthy. Also, this sign is known for being risk-takers. Aries are not afraid of danger and try themselves in different areas. People of this fire sign love telling the truth because they are honest. However, Aries have negative traits too: they are very impatient and stubborn. Never tell Aries what to do and make them wait for long! They don’t like it.

Air sign (Gemini):
People of this sign are usually very curious and intelligent. They are quick learners and eager to explore the world around. Moreover, Gemini are good communicators and love to chat. Usually, they make friends easily. One of their benefits is being adaptable - Gemini can fit into any environment. But this sign has such negative traits as being nervous and moody. They can suddenly change from being happy to angry. curious, quick

Earth sign (Capricorn):
Members of this star sign are usually responsible and disciplined. People can rely on them in any job. Also, they tend to be practical and organised. They set realistic goals and plan every stage of their life. They are goal-oriented people, and never happy for what they achieved, as they think that they can do it better. Capricorns are hard-workers and serious people. If they do a task, they do it perfectly. However, they are pessimistic by nature, and it is easy to hurt them as they can remember it for a long time.

это текст а фото это задание

пожалуйста помогите с английским дам 10 баллов

6 лет назад

Предмет: Математика, автор: салиха

Из бидона отлили 4 литра молока. Это на 7 литров меньше чем осталось в бидоне . Сколько литров ьолока осталось в бидоне ?

9 лет назад

Предмет: Алгебра, автор: Хумель

Найти расстояние между началом координат и вершиной параболы y=-x^2+10x-13

9 лет назад