it will rotate 150/30= 5 degrees per minute the it will rotate 5(5)=25 degrees per five minutes
Answer: 478
Step-by-step explanation:
The formula to calculate the standard error of the population mean is given by :-
, where
is the standard deviation and 'n' is the sample size.
Given: Mean : 
Standard deviation : 
Sample size : 
Now, the value of the standard error of the average annual salary is given by :-

Hence, the standard error of the average annual salary = 478
Answer:
A = 0.785m²
B = 31400cm²
C = 7850cm²
D = 785,000mm²
Step-by-step explanation:
To solve this question, we'll have to find the area of a circle which is
Area of a circle = πr²
1. The diameter of the circle = 1m
Area of a circle = πr²
r = radius of the circle
π = 3.14
Radius = diameter / 2
Radius = 1 / 2 = 0.5m
Area = 3.14 × (0.5)²
Area = 3.14 × 0.25
Area = 0.785m²
2. Radius = 100cm
Area of a circle = πr²
Area = 3.14 × (100)²
Area = 3.14 × 10000
Area = 31400cm²
3. Diameter = 100cm
Area = πr²
Radius = diameter / 2
Radius = 100 / 2
Radius = 50cm
Area = πr²
Area = 3.14 × (50)²
Area = 3.14 × 2500
Area = 7850cm²
4. Radius = 500mm
Area = πr²
Area = 3.14 × (500)²
Area = 3.14 × 250,000
Area = 785,000mm²
Well 2.5 + 2.5 is 5 so 5 - 2.5 is 2.5