Ответ по предмету Математика: Упростите выражение -5а-8b+13а+8b-7 и найдите его значение ,при а=-1,b=1,01

Предмет: Русский язык, автор: margoshafedoro

Все было аккуратно в Валином уголке. Кукла сидела на маленьком стульчике.Кубики сложены пирамидкой.Лошадка стояла у стены.Котёнок был разбойник и забияка.Даже мячик знал своё место. Задание: Поставь галочку перед предложением в котором выражена главная мысль этого текста. Найди и отметь //предложение которое в текст попало случайно.

1 год назад

Предмет: Русский язык, автор: Arbuz2323

Грач,полночь,пейзаж,этаж,гуашь,тушь,меч,вещь,рожь,мощь,корж,ковш,сушь,немощь, борщ,печь,ночь.
выпиши однокоренные слова,выдели в них корень.

1 год назад

Предмет: Английский язык, автор: dasaleonteva23

Помогите , пожалуйста, с английским (даю 99 баллов)

I. Find the word with the same or similar meaning.

1. to clear up a) to protect b) to pollute c) to clean
2. garbage a) danger b) litter c) bin
3. to save a) to help b) to prohibit c) to avoid
4. human being a) nature b) man c) animal
5. to destroy a) to recycle b) to pack c) to damage

II. Complete each sentence with one of the words or phrases below.

pollution environment throw away poison waste plant
protected save recyclable environmental

1. You shouldn't … the garbage in the forest, woods or park after you have had your picnic there.
2. You can see this notice by a river or a lake in some seasons when fish should be … .
3. Local government should support the idea of recycling and provide each house with bins for different types of …
4. Children should be taught to protect the … .
5. We can … trees and create parks for endangered species.
6. Together we can … the planet and all of us with it.
7. The … of the environment is dangerous for people and wildlife.
8. If countries had spent more money on scientific research, scientists would have solved some … problems.
9. How much of … material is actually recycled?
10. Rivers, lakes and seas are filled with … : industrial, chemical and nuclear wastes.

III. The word in capitals above each of the following sentences can be used to form a word that fits suitably in the blank space. Fill each blank in this way.

1. PROTECT - People of some professions should wear … clothing.
2. NATURE - If you care about the protection of the environment, you should buy only … food with no added chemicals.
3. ECOLOGY - You have probably already heard about such a profession as an … .
4. PREDICT - Scientists have made … and they are alarming.
5. USE - Many things that we throw away can still be … .

IV. Fill in the definite article the if needed.

1. … Volga runs into … Caspian Sea.
2. … Pacific Ocean is very deep.
3. … Kazbek is the highest peak of … Caucasus mountains.
4. I have never been to … Lake Onega.
5. … Washington is the capital of … United States.
6. … Europe and … America are separated by … Atlantic Ocean.
7. … Shetland Islands are situated to the north of … Great Britain.

V. Complete the sentences, using Conditional II and III.

1. If you (do) your morning exercises every day, your health would be much better.
2. If I (be) you, I would agree to go to the museum.
3. If they (not go) to Moscow last year, they wouldn't have heard that famous musician.
4. I (write) the composition long ago if you had not disturbed me.
5. If you really loved music, you (go) to the concerts much more often.
6. If she hadn't sent this letter yesterday? my brother (be) at home now.
7 If you (ring up) earlier? she would be here now.

1 год назад

Предмет: Алгебра, автор: sashaspiilerg

Решите плиз... Долго пытаюсь решить, не получается...

корень из 2х+1 равно 2корня из х минус корень из х-3

7 лет назад

Предмет: Физика, автор: фырфырка24

можете решить пожалуйста, срочно
физика 7 класс
даю 50 баллов

7 лет назад

Упростите выражение -5а-8b+13а+8b-7 и найдите его значение ,при а=-1,b=1,01

Ответы