What is the value of X?

x = 60

Step-by-step explanation:

<DGC = 90 degrees            Given

<AGB = <DGC                       Vertically opposite angles.

<AGB = 90 degrees.            <AGB takes on the properties of <DGB

30 + x + 90 = 180                 The three angles make up a line.

120 + x = 180                         Combine like terms..

x = 180 - 120                          Subtract 120 from both sides

x = 60

last one.

step-by-step explanation:

last one.

generally speaking, the others follow some sort of pattern that correlates to either linear (looks like a straight line) or sinusoidal (looks like an s).

the last one is just a random cloud of points that doesn't correlate to any particular known order.

answer. d.289 hope that