Let's use an example
Say we had two lines P and Q. If P has slope 2/5, then Q must have slope -5/2 in order for P and Q to be perpendicular.
Note how -5/2 is the negative reciprocal of 2/5. In other words, you flip the fraction and the sign to go from either slope.
Another thing to notice is that the two slopes multiply to -1. This is true for any pair of perpendicular lines as long as neither line is vertical.
Answer:
4x(3a+2b)
Step-by-step explanation:
9.647 x 10^7 should be the unrounded answer
Answer:
Step-by-step explanation:
area= lxw multiply all sides