На клетчатой бумаге нарисован круг площадью 16. Найдите площадь заштрихованного сектора. Там одна восьмая закрашена

как проверить в  слове сонный НН ? для 2 класса

Упражнение 7

Раскройте скобки, употребляя глаголы в Present или  Past Simple.

1. His sister (to study) English every day. 2. She (to study) English two years ago. 3. You (to come) home at six o'clock yesterday? - No, I ... . Yesterday I (to come) home from school at half past eight. I (to be) very tired. I (to have) dinner with my family. After dinner I (to be) very thirsty. I (to drink) two cups of tea. Then I (to rest). 4. I (to go) to bed at ten o'clock every day. 5. I (to go) to bed at ten o'clock yesterday. 6. My brother (to wash) his face every morning. 7. Yesterday he (to wash) his face at a quarter past seven. 8. I (not to have) history lessons every day. 9. We (not to rest) yesterday. 10. My brother (not to drink) coffee yesterday.

найдите наибольшее значение функции у=x^2-12x=121\x на промежутке [-21;-0,12]