Answer:
It is 18
Step-by-step explanation:
A^2+31^2=36^2
After that you simplify then solve and you'll get 18
Answer:
30 and 40
Step-by-step explanation:
30 and 40
W = 21 - 3
weight of the tree = 21 pounds - 3 pounds
The standard error of the mean is 12.
The standard error of the mean points to the standard deviation of the distribution of a sample mean obtained from a population.
The standard error S.E of the mean can be calculated by using the formula:

where;
- standard deviation
= 24 - sample size n = 4


S.E = 12
Learn more about the Standard error of the mean here:
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