Its an acute angle, im in 6th grade, and your in high school so..... im sorry if i get it wrong, but hey! i tried! lol
Answer:
The correct option is d
Step-by-step explanation:
From the question we are told that
The sample size is n = 64
The mean is 
The standard deviation is 
Generally the standard error of the mean is mathematically represented as

=> 
=> 
Thanks for the free points
Answer:
16.2 is the volume i hope i helped u
Degrees because its a full circle unless your doing the opposite to both sides