Answer:
okayyyyyyyyyyyyy
Step-by-step explanation:
(x2 +1) (x2-4) (mark as brainiest)
18·8.7= 156.6
23·56.1= 1290.3
47·5.92=278.24
D) perpendicular!
A perpendicular's definition is: a straight line at an angle of 90° to a given line, plane, or surface.
And if you mark them on a graph you could see these two are opposite of each other.