Answer:
C. The circle is circumscribed about ΔABC
Explanation:
The circumscribed circle of a polygon is a circle that passes through all the vertices of the polygon.
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.
R is 1 because in the table nothing has change.
Answer: 3.6cm
Step-by-step explanation:

Using the volume formula; solve for a;
![a^2=\frac{V}{h}\\ a=\sqrt[]{\frac{V}{h} }](https://tex.z-dn.net/?f=a%5E2%3D%5Cfrac%7BV%7D%7Bh%7D%5C%5C%20a%3D%5Csqrt%5B%5D%7B%5Cfrac%7BV%7D%7Bh%7D%20%7D)
![a=\sqrt[]{\frac{104cm^3}{8cm} }](https://tex.z-dn.net/?f=a%3D%5Csqrt%5B%5D%7B%5Cfrac%7B104cm%5E3%7D%7B8cm%7D%20%7D)
![a=\sqrt[]{13cm^2}](https://tex.z-dn.net/?f=a%3D%5Csqrt%5B%5D%7B13cm%5E2%7D)

Answer:
Step-by-step explanation:
The main goal in any equation is to get the unknown variable all by itself. In this case that means moving the fraction of 7/8 over to the other side of the equals sign. On the left, the fraction is being subtracted; that means that to move it to the other side, we add it since adding is the opposite of subtracting.

On the left side, if you have 7/8 and then take that 7/8 away, it's gone completely. What we have now is

We need a common denominator so we can add 4 (which is 4/1) to 7/8. 8 is the common denominator.
and
giving us