Translation: (x.y) (x + 2, y+ 2) y. A A' ( B' ( C (

15. Solve the following problems from the last section of the Nine Chapters: (a) A square, walled city measures 200 paces on each side. Gates are located at the centers of each side. If there is a tree 15 paces from the east gate, how far must a man travel out of the south gate to be able to see the tree? A 200 B 15 E F 100 H D G (b) A square, walled city of unknown dimensions has four gates, one at the center of each side. A tree stands 20 paces from the north gate. A man walks 14 paces southward from the south gate and then turns west and walks 1775 paces before he can see the tree. What are the dimensions of the city? 20 B H E D C | 14 1775 F

DI 8. 2x3(9x2 +5y) 9. (6a+1)(5a+2) 10. -4x²y(x² +7xy-6y) 11. (x-2)(x² search

I need help with both!!!