Previously, 44% of mothers smoked more than 21 cigarettes during their pregnancy. an obstetrician believes that the percentage of mothers who smoke 21 cigarettes or more is less than 44% today. she randomly selects 120120 pregnant mothers and finds that 33 of them smoked 21 or more cigarettes during pregnancy. test the researcher's statement at the alpha equals 0.05α=0.05 level of significance.

eww xbox also eww dayz

step-by-step explanation:

just for that im not answering

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

b. hannah is playing with her cousin at

answer:

idk

step-by-step explanation: