Cho hai đường thẳng x x' và y y' cắt nhau tại O. Gọi tia Ot và O' lần lượt laftia phân giác của xÔy và x'Ôy'. Chứng tỏ tia Ot và tia Ot' là 2 tia đối nhau.

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.

Angle that produces maximum distance

12 3 4 5 6 7 8 9 10time remaining01: 24: 54which graph represents this system? y=1/2x + 3 y= 3/2x -1