¿que características debe tener los términos algebraicos para que se puedan sumar? porfa necesito la respuesta para una exposicion

Choose the point slope form of the equation below that represents the like that passes through the points (-6,4) and (2, 0)

Which math sentence can be used to determine if the triangle is a right triangle?

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin