Answer:
8 square units
Step-by-step explanation:
Area of the shaded shape = sum of shaded squares × 1 square unit
= 8 × 1 = 8 square units
Answer:
The confidence interval is 
Step-by-step explanation:
From the question we are told that
The sample mean is 
The standard deviation is 
The sample size is 
given that the confidence level is 85% then the level of significance is mathematically represented as

Next we obtain the critical value of
from the normal distribution table the value is

Generally the margin of error is mathematically represented as

=> 
=> 
The 85% confidence interval is mathematically represented as

=> 
=> 
Answer:
131072
Step-by-step explanation:
Let's put it into expression form and simplify as much as possible :
=
=
131072
Hope this helped and have a good day
Im pretty sure x y should be 30, I hope this helps.
Answer:
38/5
Step-by-step explanation: