Two lines are perpendicular if
A. They cross eachother
B. one slope is the negative reciprocal of the other
C. one slope is the negative of the other
D. they are negative reciprocals

if you mean

then it's c. 8, -7/3

but if you mean

then it is

answer: yard ramps with a level off platform are typically 36 feet long. truck, rather than at an angle, enabling access to those pallets at the very back of the truck. if you are using your yard ramp to convert a loading dock into a drive-in door, we even at 60 inches (5 feet) high and a 30 foot ramp, the slope of the ramp will be less

step-by-step explanation:

replication and blocking

step-by-step explanation: