дайте характеристику сероводородной и азотной кислотам используя различные признаки классификации кислот: молекулярная формул, основность, наличие кислорода, растворимость, степень диссоциации

Даны три числа. Первое 4 1/5, второе на 5 больше, чем первое, а третье на 3 1/5 больше второго . Какова сумма трех чисел?

Решить задачу: Катер прошёл против течения 66,15 км за 4,9 ч. Сколько времени понадобиться на обратный путь, если его собственная скорость равна 16,2 км/ч?

ПРВЕРЬТЕ ПОЖАЛУЙСТА!!!

Dear Mr Cartwright,

I am writing to apply for the job of volunteer worker which I saw advertised in The Guardian last week. I would be interested in teaching maths to primary children in your camp in Chittagong in Bangladesh. I enclose a copy of my CV.

I am a  fifteen  years old and I have just finished secondary school  inlarge Bikshihi. I would like to work for you because I am very interested in teaching. I would also like to learn about a different culture as I feel that intercultural understanding is extremely important.

I am a hard-working and committed person. I have participated for the last three years in a voluntary programme, Community Links, visiting elderly people in my local area. I also feel that I can get on well with people from other cultural backgrounds, since I have also taught immigrant children English at our church school.

I think I would be a good primary teacher of maths due to my teaching experience. Also, I have recently passed my Maths 'A' level (grade B), so I have a good understanding of the subject. In addition, I hold a certificate in first aid, which might be useful.

I look forward to hearing from you.

Yours sincerely, Alexandrov, David

Преобразуйте многочлен в выражение: -(v-5)v-(v-6)(v+6)