Предмет: Математика, автор: nastyavaydner

найдите значение -8x-7y при x=-2,9, y=13,9

Ответы

Автор ответа: levitskayakristina

2

-8 • (-2,9) - 7• 13,9= 23,2 - 97,3 = -74,1

Автор ответа: katya2958

1

-8*(-2,9)-7*13,9 = 23,2-97,3 = -74,1

Ответ : -74,1

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Английский язык, автор: Аноним

Read the text about animals

Wild animals like lions, squirrels, hippos and many others live in their natural habitats, in the wild. Domestic animals have lived alongside humans for generations - for example, cats, horses, roosters. In the past people often used animals in everyday life, for example, they used horses for soil cultivation and mules for transport. And nowadays many domestic animals are useful to humans, for instance, dogs protect people and houses, and also they can hunt with humans. There are dogs that assist police (K-9 units) and military. Just as in the past, geese, ducks, roosters and hens give us poultry and cows give us meat and milk.

Also animals perform in circus. The most common circus animals are big cats (for example, tigers and lions), zebras, elephants, birds (mainly parrots and doves) and domestic cats and dogs. Animals in circus can be fun to watch, but performing can be very stressful for them. People should not do them harm and should take care of them properly.

Write the words into each gap:

1. In the past people often used animals ..... for example, they used horses for soil cultivation and mules for transport.

2. The ...... circus animals are big cats (for example, tigers and lions), zebras, elephants, birds (mainly parrots and doves) and domestic cats and dogs. (2 words)

3. People should not ....... and should take care of them properly. (3 words)

Там где я ставила ..... это значит туда надо вставить слова

5 лет назад

Предмет: Литература, автор: alessandra3

Помогите пожалуйста, срочно надо

5 лет назад

Предмет: Биология, автор: potatoshkagm

сложные листья сфагнум или Кукушкин лен

5 лет назад

Предмет: Математика, автор: Amir71

Помогите как сделать и написать условию

9 лет назад

Предмет: Математика, автор: ramazan5105

10 баллов Нужно детальное решение примера

9 лет назад