5.9 • 10^4
just add the two numbers because the exponents are equal.
Answer:
78.88%
Step-by-step explanation:
We have been given that

The z-score formula is given by

For 

For 

Now, we find the corresponding probability from the standard z score table.
For the z score -1.25, we have the probability 0.1056
For the z score 1.25, we have the probability 0.8944
Therefore, the percent of the trees that are between 20 and 30 years old is given by
0.8944 - 0.1056
= 0.7888
=78.88%
Answer:
The answer would be D, or 
Step-by-step explanation:
A is 540
B is 30
C is 720
D is 360
Answer:
Step-by-step explanation:
sure i am here to help always for