Chứng minh rằng, nếu phép afin f biến mỗi đường thẳng a thành đường thẳng a’ song song hoặc trùng với a thì f là phép tịnh tiến hoặc là phép vị tự.

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

If you had $1,900,000, how many days would it take you to spend all if you spent $1 a second. (there are 86,400 seconds in a day)

What is the solution to the equation below? 3/x-2+6=square root x-2 +8