Answer:
A ≈ 530 cm²
Step-by-step explanation:
The swept area equals the total area covered by the blade minus the unswept area.
The area of a sector with radius r and angle θ is:
A = (θ / 360) πr²
So the swept area is:
A = (θ / 360) πR² − (θ / 360) πr²
A = (θ / 360) π (R² − r²)
A = (150 / 360) π (21² − 6²)
A ≈ 530 cm²
The answer would be 90 I think
Week # of Songs
1 34
2 34 + 6
3 34 + 6*2
4 34 + 6*3
...
n 34 + 6*(n - 1)
100 34 + 6* (100 - 1)
Answer: second option
1. I think A is 5 because it is the lower quartile range
2. The median of the data is 56 because the median of a plot is in the middle of the data
3. The greatest value of the data plot is 45 because it is higher than the rest of the numbers (upper quartile range).
4. The median of the plot is 41 because if you look at the box-whisker plot you can see that it is in the middle of the box
5. Your answer would be 42 because on a box-whisker plot, the first quartile is on the side of the box(first quartile).
Hope this helps :)
Pls mark as BRAINLIEST!
Answer:
.0942816
Step-by-step explanation:
Given
Sample size n = 150
Sample proportion 
= 
= 0.28
Confidence interval = 
= .99
1 - confidence interval = 1 - 0.99 = .01
For 99
confidence interval
( Z = 2.576 )
= .0942816
