Answer:
r = 18/pi
or approximately 5.7325 inches
Step-by-step explanation:
The circumference is given by
C = 2*pi*r
36 = 2*pi*r
Divide each side by 2 pi
36/(2pi) = r
18/pi = r
Letting pi = 3.14
18/3.14
5.732484076 = r
Answer:
0.2 m³/s
Step-by-step explanation:
Applying,
Q = vA.............. Equation 1
Where Q = Flow rate of air in the pipeline, v = flow velocity of the air in the pipeline, A = cross sectional area of the pneumatic pipeline.
From the question,
Given: v = 20 m/s, A = 0.01 m²
Substitute these values into equation 1
Q = 20(0.01)
Q = 0.2 m³/s
Hence the flow rate of air in the pipeline is 0.2 m³/s
Answer:
12
Step-by-step explanation:
Answer:
The area of the sector is 26.69
Step-by-step explanation:
First of all we need to calculate the area
To solve this problem we need to use the area formula of a circle:
a = area
r = radius = 3
π = 3.14
a = π * r²
we replace with the known values
a = 3.14 * (3)²
a = 3.14 * 9
a = 28.26
The area of the circle is 28.26
A complete circle has 2pi radians
We divide 17/9 pi by 2pi and obtain the fraction of the total circle
(17pi/9) / 2pi = 17/18
we multiply this fraction with the area of the circle and obtain the area of the sector
28.26 * 17/18 = 12.43cm
The area of the sector is 26.69
Answer:
No
Step-by-step explanation:
First, You would multiply 3 and 6 because there are 3 classes in each of the six grades. The you would added that answer with 4 because we csnt forget about the Kindergarten classes. So, all of this is 3×6+4=22. then divide 1,000 by 22 and you get 45.45454545... so this cannot divided equally. ☺
