Answer:
1187.52
Step-by-step explanation:
A=2πrh+2πr2=2·π·9·12+2·π·92≈1187.52202
Answer: c.
Step-by-step explanation:
As per given , we have
Total number of residents injured from roller-skating =1,800
Total number of deaths from roller-skating = 90
Formula for Mortality rate : 
Then, the proportional mortality ratio (%) due to roller-skating was
=
= 5%
Hence, the correct answer is c.
So 1/3 miles in 10 minutes
an hour is 60 minutes
to see how much he walks in a minute you divide
1/3 / 10
so he walks 1/30 miles per minute
now to see how much in an hour
1/30 * 60
that is 2
In one hour he will travel 2 miles
Hope this helps :)