The answer would be letter A
Answer:
a. rational
b. irrational
c. rational
d. rational
Step-by-step explanation:
Answer:
The study is an experiment.
Step-by-step explanation:
From the information provided, Eighth-grade students are randomly divided into two groups.
==> The first group is taught English using traditional techniques.
==> The second group is taught English using a reform method.
The main goal is to compare the proficiency in English of the two groups. This is purely an experimental study. In this case, human experiment.
The experimental tools is the English techniques being served or taught and the experimental units are the Eighth-grade students which were grouped into 2 groups and served different techniques.
At the end of the study, the researchers wish to know the most effective or efficient method of teaching English to gain excellent proficiency of the language. They should be able to know whether Traditional techniques is better than the Reform method or vice versa.
Answer:
x = 7 m and x = −7 m
Step-by-step explanation:
Its a modulus problem
concept
|x| = x when x>=0
|x| = -x when x < 0
____________________________________
Now given
|x| − 2 = 5
adding 2 both sides
|x| − 2 + 2 = 5 + 2
|x| = 7
now
x = 7 when x >= 0
x = -7 when x<0
Thus, correct answer is x = 7 m and x = −7 m
