Câu 14. Cho tam giác , các điểm D và E lần lượt thuộc các cạnh AB và AC . Chứng minh rằng nếu DE // BC thì AD/AB=AE/AC

Teams of 4 are competing in a 1/4 mile relay race. each runner must run the same exact distance. what is the distance each teammate runs?

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32