Well if you mean what does the controlled part of a scientific investigation, it is the part of the investigation that will be your control or your base, untouched, original, data and such.
The United States is an example of Democracy.
1- The northern hemisphere is in either summer or spring, and the southern is in winter or fall.
Answer:
Value of x = 5
Explanation:
Given:
Angle 1 = 53°
Angle 2 = 78°
Angle 3 = (10x - 1)°
Find:
Value of angle x
Computation:
Using angle sum property of triangle
⇒ Angle 1 + Angle 2 + Angle 3 = 180
⇒ 53 + 78 + (10x - 1) = 180
⇒ 131 + 10x - 1 = 180
⇒ 10x + 130 = 180
⇒ 10x = 180 - 130
⇒ 10 x = 50
⇒ x = 50 / 10
⇒ x = 5
Value of x = 5
The volume of the cone is calculated by the formula:
V = B*H/3
r=D/2 = 6/3 = 2
where B is surface area of basis and H is height.
B is circle which fomula for surface is:
B = r^2 * pi = 3^2*3,14 = 9*3,14 = 28.26
from condition of height we write:
H = 3*D = 3*6 = 18
now volume is:
If we express all of that in equation of volume we get:
V = 1/3* 3^2*3,14*18
