Divide 1017,36 by pi and by the height (the inverse of the formula for the volume):
1017,36/3,14 = 324
324/9 = 36
6 people went to the water park and the total was $144. If they were all charged the same, simple divide 144 by 6.
Answer: $24 a person.
[tex]\mu[\tex]=8
[tex]\sigma[\tex]=0.7
x=9
Z=(x-[tex]\mu[\tex])/[tex]\sigma[\tex]
=(9-8)/0.7
=1.43
=1.4 [to the nearest tenth]