Step-by-step explanation:
Given: diameter = 16 in
hence radius, r is 16 ÷ 2 = 8 in
a) notice that the fan blades divide the circle into 3 equal sectors.
Each sector is hence 1/3 of the entire circumference of the circle
Arc Length of each sector (between blades),
= (1/3) x circumference
= (1/3) x 2πr
= (1/3) x 2 x 3.142 x 8
= 16.76 in (Answer)
b) similarly, the area between the blades
= (1/3) x πr²
= (1/3) x 3.142 x 8²
= 67.03 in² (answer)
c) The angular velocity is the radians per second that the tip moves
It is given that it moves 8π radians in 2 seconds
hence in 1 second, we expect the tip to move,
8π ÷ 2 = 4π rad/s (Answer)
Answer:
92.45cm^2
Step-by-step explanation:
The volume of the cone is found with pi*r^2*h/3
Answer:
Mean: 61
Mode: None
Median: 70
Range: 24-99 = 75
Step-by-step explanation:
There is no mode since not one variable repeats.
How to find the mean: Add all the numbers then divide how many there are in this case there are 7.
Median is the number in the middle once put from greatest to largest and the range is min and max
