I believe it is not a tight trying because as I was taught, A+B=C & C-A=B which does not work out in this case.
Angle g= 180-60-67=120-67=53
so they are similar three angle is the same
Answer:
5.73 The closest answer is probably 6
Step-by-step explanation:
First of all, this is not an observational study, but an experiment, since we have two groups and one of the two groups is manipulated or treated. In an observational study the subjects are only observed.
Second, the students did not choose their groups - so we can't choose the last answer.
Therefore the correct answer is:
This is an experiment because a treatment was applied to a group.
The answer is 16. Since all the numbers rather than it are odd and 16 is even.