A researcher is running a study to determine how employees of a certain company commute to work. In order to complete the study, the researcher selects a sample of 300 employees of this company and records their means of arrival on a specified day.

If the researcher also wants to consider the age of the employee as an additional factor in this study, what would this be considered?

a) Matching

b) Placebo Effect

c) Blocking

d) Stratifying

e) Control

step-by-step explanation:

if you meant, "on the way from (3, 2) to (3, 14):

x does not change; y increases by 12.

ensure that you have copied down this problem correctly.   .

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

thats not a system of equations, that is a solution