Answer:
each side is 31cm
Step-by-step explanation:
91/3=31
31+31+31=93
Answer:
The margin of error (E) 
Step-by-step explanation:
Given,
mean 
standard deviation 
sample size 

Critical value


Critical value 


The margin of error (E) 


Hence, The margin of error (E) 
Complete question is attached in below.
Sum means we are adding. 1 + y has to be greater than or equal to 5, therefore,
You haven't given any options.
there are infinite numbers which are at a distance of √17 from origin.
Example: 4+i, 1+4i, 17i, 3+2√2i, 4-i etc