X/4 + 10 = 1 what does x equal

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares