Answer:
Please edit this question, I'm not sure what you're asking. Or, include a picture.
Answer:
1.6101529
Step-by-step explanation:
Given the following :
Number of samples (n) = 210
Sample mean (x) = 5
Population standard deviation = 0.9
Population mean (m) = 4.9
Since the standard deviation of the population is known, we can use the z statistic
Z = (x - m) / standard error
Standard error = sd / √n
Standard error = 0.9 / √210
Standard error = 0.9 / 14.491376
Standard error= 0.0621059
Z statistic = (5 - 4.9) / 0.0621059
Z statistic = 0.1 / 0.0621059
Z statistic = 1.6101529
Remark
The average is found by adding the total miles and dividing by the total number of hours.
Average
total distance = 52 + 64 + 49
Total distance = 165 miles
Total time = 1 + 1 + 1 = 3 hours.
Average = total distance/ total time
Average = 165 / 3 = 55 miles per hour.
Answer:
The answer is A
Step-by-step explanation:
A * 2 = 1/2πr^2 * 2
2A / π = πr^2 / π
= 
So, the answer is A because r =
