помогите написать сочинение на тему как я провел свой весенние каникулы

Решите уравнение,с объяснением.Заранее спасибо.

x2+x-Kx+4=0

30 словосочетаний с Н-НН 

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30 словосочетаний прилагательное+наречие 

площадь основания правильной четырехугольной призмы равна 36 см^2, а площадь ее полной поверхности равна 144 см^2. чему равна высота призмы?

В Complete the sentences with the correct facts from history. to have sixty stars on the American flag, discover America, to put tax on tea, to meet Indians, to become famous as the author of the American Constitution, to go to the New World 1. If Columbus hadn't gone to find a new way to India,... 2. If the English king had been more tolerant, the Protestants... 3. The Pilgrims wouldn't have learned how to plant crops if... 4. The War of Independence wouldn't have started... 5. If Thomas Jefferson hadn't been the US President,... 6. If there were sixty states in America,...