To find how high school students feel about hot lunches, Adam walks to the nearest high school and gives a survey postcard to every 20th student that enters the building he asked the students to mail a postcard if they choose to participate in the study. Select all sampling methods used

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value

what level of math? also i don't need to be paid if i can you.

the correct answer is 1.7