{2x^2-3xy-19y^2=25 и {x^2-6y^2=250 Помогите решить систему нелинейных уравнений пожалуйста, как не пыталась ничего не выходит.

Подобны ли прямоугольные треугольники ABC и A'B'C'

Put the questions to the following sentences:
1. общие
2. специальные
3. разделительные
1. There is a book on the table. 2. He must work hard today. 3. We are leaving for Moscow next week. 4. We were reading the whole evening. 5. They don't go to work on Sunday. 6. It is not cold today. 7. Ann has already begun to read a new book. 8. We learn English at school. 9. They will show you how to get there. 10. They finished the translation before the end of the lesson. 11. I didn't feel well that evening. 12. It wasn't difficult to do this task.

я знаю это задание уже тут было помогите пожалуйста ребят.