Answer:
let width be x
Step-by-step explanation:
2x-6+3+2x-6+3=18
4x+6=18
4x=18-6
4x=12
x=12/4
x=3
Y=mx+b
m=slope
perpendicular lines have slopes that multiply to get -1
the slopes are
for

and

, the slope are

since their product is -1, the lines are perpendicular
Answer:
yes
Step-by-step explanation:
These are like terms because they have the same variables and powers. The coefficients do not need to match for it to be considered a like term.
Answer:
Step-by-step explanation:
√p^2=
I got either p or absolute p
Answer:
the first one
Step-by-step explanation:
the 4x's cancel out and 8 does not equal -14 so...