Answer:
because they are across from each other vertically
Step-by-step explanation:
Answer:

Step-by-step explanation
The slope of a perpendicular line would be (-x) if the slope of the original line was (x).
The formula for finding slope is:

Inserting your problem would make the equation look like:

Simplify:

That is the slope of the given line, to find the slope of the line perpendicular to that one, we would put into (-x)
Answer:

Answer:
-7v - 17
Step-by-step explanation:
-3(v+3)-4(v+2)
= -3v - 9 - 4v - 8
= -7v - 17
Answer:
The numbers are 3, 12 and 5.
Step-by-step explanation:
Let the numbers =x, y and z.
The sum of three numbers is 20 implies x+y+z=20----------------i
The second number is 4 times the first implies y=4x--------------ii
The sum of the first and the third is 8 means x+z=8---------------iii
from (i), z=20-x-y---------iv
Put (iv) in (iii),
x+20-x-y=8
20-y=8
y=20-8=12
y=12
Put y=12 in (ii)
4x=y
x=y/4 = 12/4 = 3
x=3
Put x=3 and y=12 in (iv)
z=20-3-12=5
z=5
Therefore, the numbers are 3, 12 and 5.