Answer:
b. experiment
Step-by-step explanation:
An observational study is one in which the researchers monitor the effect of a risk factor on subjects without introducing interventions for the purpose of noting differences in results. An experiment is mainly a randomized control trial where subjects are assigned to groups and chosen by chance. Interventions are also introduced by the researchers so as to note the different possible results within the groups and among participants.
The above-described process incorporates an experiment and that is why the researchers introduce protein level diet as interventions. It also employs the random assignment of subjects to different groups so as to improve the accuracy of the process.
Answer:
9931.2222222
Step-by-step explanation:
Divide this by using your hand long way or a calculator.
Answer:
If you mean graphing its called a parabola
Step-by-step explanation:
Answer:
Option 'b' i.e. -11/20 is the correct option.
Thus,
Step-by-step explanation:
Given the expression
Determining the difference of the fractions
The Least Common Multiplier of 5, 4 is 20. Thus, adjust the fractions based on the L.C.M.
Apply the fraction rule: 
Add the number: 4-15 = -11
Apply the fraction rule: 
Please check the attached figure, where the pointing-down arrow is representing the correct answer which is -11/20.
Therefore, option 'b' i.e. -11/20 is the correct option.
Thus,
P'(-3,-8) Q'(-6,4) R'(1,-1)
This should be correct! Hope I helped!
