Предмет: Алгебра, автор: alatyyeva011


[2] Первый член геометрической прогрессии равен - 16, а
знаменатель -1,5. Найди четвертый член

Ответы

Автор ответа: ildar502020
0

Ответ:         -54.

Объяснение:

bn=b1*q^(n-1);

b1=16;   q=-1.5;

b4=16*(-1.5)^(4-1) = 16*(-1.5)^3 = 16*(-27/8)=-54.

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Английский язык, автор: Аноним
1. Complete the sentences, using the correct form of the verbs in brackets.
0 Harry goes (go) to school at 8.00 every morning.
1 Where _______________ (you / go) now?
2 My dad _______________ (know) a lot about history.
3 Neil _______________ (not / understand) the teacher’s question.
4 Tom and Jamie _______________ (play) computer games upstairs at the moment.
5 Terry _______________ (need) to clean his football boots this morning.
6 _______________ (Sara / usually / wear) her skateboarding T-shirt at school?
7 Jack _______________ (listen) to more rock music these days.
2. Make sentences using the Past Simple and Past Continuous.
0 Tom saw (see) his friend while he was cycling home.
1 It ____________ (become) cold while we ____________ (walk) in the mountains.
2 Where ____________ (you / go) when I ____________ (meet) you yesterday?
3 Kevin ____________ (not play) football when I ____________ (call) him. He was at home.
4 I ____________ (drop) my phone while I ____________ (wait) for the bus.
5 Mark _____________ (see) a big fish while he ____________ (swim) in the sea.
6 I ____________ (hear) the phone ring while I ____________ (watch) TV.
7 Someone ____________ (steal) my bike while I ____________ (buy) food inside the shop.
Verb + ing / verb + to and infinitive
3. Complete the sentences with the correct form of the verbs in brackets.
0 Do you want to watch (watch) a music show on TV later?
1 I like ____________ (buy) new clothes at the weekend!
2 Tom plans ____________ (visit) us soon.
3 I miss ____________ (see) my friends when I’m away from home.
4 My sister always offers ____________ (help) me with my homework.
5 I’ve decided __________________ (study) Maths at university.
6 I hate ____________ (listen) to pop music. I like rock!
7 Do you mind ____________ (open) the window? It’s hot in here!
8 I always avoid ____________ (travel) by bus when it’s busy.
4. Complete the sentences, using the Present Perfect or the Past Simple forms of the verbs in brackets.
1. I _______________________ (go) to my first football match when I was six.
2. My sister ____________________(see, never) a film at the cinema.
3. I _______________(not, go) to a birthday party ___________(for/since) last March.
4. I _________ (to be) in the same town (for / since) I was born.
5. They ___________________(study) English yet.
6. My Dad ___________________(smoke) since/for 2002.

7. How long ____________you___________(know) Jeremy?
8. They _____________________(live) in Brussels for a long time.
2 года назад
Предмет: Алгебра, автор: sostakgalina13
Функцію задано формулою y=5x-3.визнасте значення функції ,якщо значення аргументу дорівнює 2.вищначте значення аргументу ,якщо значення функції дорівнює -18.побудуйте графік цієї функції
2 года назад
Предмет: Биология, автор: toleshsultanbek0011
Өсімдіктерді көбею тәсілдеріне қарай сәйкестендіріңіз​
2 года назад
Предмет: Физика, автор: gulnarasochi93
Какова сила тяги тепловоза мощностью 5100 кВт при скорости 72 км/ч?

 

Ответ: F=кН.

 

​
8 лет назад
Предмет: Русский язык, автор: vrv4b4
Подчеркните главные члены предложения.

3.Найдите личные глаголы.

4.Найдите безличные глаголы.

5.Укажите форму употребления безличного глагола.

ПОМОГИТЕ ПЖ ДАЮ 35БАЛЛОВ

С зари кукушка за рекою

Кукует звучно вдалеке,

И в молодом березняке

Грибами пахнет и листвою.
​
8 лет назад