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периметр параллелограмма равен 46.одна сторона пар-ма на 3 больше другой,найдите меньшую сторону пар-ма
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Предмет:
Математика -
Автор:
jaidynzw6r - 6 лет назад
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Ответы 1
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р=2*(а+в)одна сторона х,вторая х+32*((х+(х+3))=462*(2х+3)=464х+6=464х=46-64х=40х=10 см первая сторона10+3=13 см вторая сторонапроверка 2*(10+13)=46
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Автор:
sabrina76 - 6 лет назад
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0
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Прочитайте тексты и установите соответствие между текстами А–E и заголовками 1–6. Запишите свои ответы в таблицу. Используйте каждую цифру только один раз. В задании есть один лишний заголовок.
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2. Annoying mobiles
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6. Modern mobile phones
A. Lars Magnus Ericsson, was the first man who had a telephone in his car. When he saw a place where he could get to phone lines, he connected to them with a pair of long electric wires. Then in Russia two Soviet engineers successfully tested a mobile phone installed in a car. It could connect to a local telephone network within 20 kilometers. A year later, two engineers from Europe tried to use antenna in the phone.
B. The company of mobile phones in Finland started to sell their products in 1970. There were several types of phones: 2G and later 3G. Third-generation phones are now used everywhere in the world. They are small, flat and very comfortable to use. Some people say that the only problem with the new phones is to remember all the functions. The mobile phone is often called the Seventh of the Mass Media (with Print, Recordings, Cinema, Radio, TV and Internet the first six).
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