Use the given data to find the minimum sample size required to estimate the population proportion.

Margin of error: 0.05; confidence level: 99%; from a prior study, is estimated by 0.15.

step-by-step explanation:

l.ln.lln.k.nkl

step-by-step explanation:

answer: haha (: i’ll go see what it is

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