That is for Geometry. So Pythagorean Theorem: a2 + b2 = c2. The Pythagorean Theorem is a formula that gives a relationship between the sides of a right triangle The Pythagorean Theorem only applies to RIGHT triangles. A RIGHT triangle is a triangle with a 90 degree angle.
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.
You need to work out the variables of 20 (the last number) first:
1, 2, 4, 5, 10, 20
Lets call these folks "p"
At that point you need to work out the components of the main coefficient (the number before the most astounding force of x):
1
Lets call this person "q"
At that point you need to make all the conceivable divisions you can with:
±p/q
Since q is only 1, we are fortunate, so the conceivable normal roots are:
±1/1,±2/1,±4/1,±5/1.±10/1,±20/1
30, ___, 19, 13.5
19 - 13.5 = 5.5
30 - 5.5 = 24.5
19 + 5.5 = 24.5
Thus, 30, 24.5, 19, 13.5.