A radio station conducts a survey. They want to know if their listeners like a certain song. So
they announce on the air that listeners should
call one number on their phones if they like the
song and another number if they don't like it.
This is an example of:
A. A convenience sample
B. A self-selected sample
C. A systematic sample
D. A simple random sample

6 on both sides and twelve on the top and the bottom

step-by-step explanation:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

so the possibilities of the measurement of the side of the triangle are either it is longest side or not the longest side

when it is the longest side

s < 25 + 35s < 60

if it is not the longest side

35 < 25 + s10 < sso 10 < s < 60so the perimeter70 < p < 130