Ánh sáng di chuyển khoảng 3 x 10^ 5 km mỗi giây. Khoảng cách từ Mặt trời đến Trái đất là khoảng 1,5 x 10^8 km. Thời gian ánh sáng truyền từ mặt trời đến trái đất là bao lâu?

Matt and brian were solving a system of equations. they both noticed that the two lines had the same slope. brian said that because each line in the system had the same slope, the two lines had to be parallel, which meant the solution to the system was "no solution" matt disagreed, and said they should also look at the y-intercepts before determining how many solutions there were. who is correct?

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

You’re giving a cube with a length of 2.5 cm and a width of 2.5 cm and a high of 2.5 cm you place it on a scale and it is 295 g calculate the density