Answer:
yes, they are
Step-by-step explanation:
3;5 = 6;10
Answer:
6 dollars
Step-by-step explanation:
40-10=30
30/5= 6
Answer:
Step-by-step explanation:
1a = yes
1b = no, you don’t add the denominators together when adding.
1c = yes
1d = yes
Answer:
The standard deviation of the sample mean is
Step-by-step explanation:
From the question we are told that
The mean is 
The standard deviation is 
The sample size is 
Generally the standard deviation of the sample mean is mathematically represented as

substituting values


Answer:
27.6
Step-by-step explanation:
1) Say bens depth is x
Cam's depth is x + 4.2
Andrew's depth is x + 4.2 + 16 or x + 11.8
1) andrew's depth = x + 11.8, where x is 15.8.
Therefore, his depth is 27.6 meters.