Which is the best description for the lines i and k?

a) parallel

b) perpendicular

c) intersecting and parallel

d) intersecting but not perpendicular

Choice D, perpendicular is when the slopes are inverted to each other such as 1/2 and -2/1

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.