SA=4pir^2
r=20m
SA=4pi20^2
SA=4pi400
SA=1600pi m^2
Answer:
35.29%
Step-by-step explanation:
Just divide 30 by 85
Answer:
<em>The probability of obtaining a score less than 60 is 2.28%
</em>
<em>It happens 2 out of 100 times.</em>
Step-by-step explanation:
If the mean μ = 80 and the standard deviation σ = 10, then we need to find the probability that an X value is less than 60.
Then we find

To find this probability we use the Z statistic.



This is the same as

We look for this value in the table for the normal distribution of right queue and we have:

<em>The probability of obtaining a score less than 60 is 2.28%
</em>
<em>It happens 2 out of 100 times.</em>
1.3 meters because the radius is half of the diameter, which is 2.6
Answer: hmmm no!
Step-by-step explanation: