You can put 400/100 to get the fraction 4/1 or 4, it is not a mixed number though. So the final answer is 4
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Cube root the value:
Answer = 9 ft
If you work forward from this answer, you'll understand the process
volume = l x w x h
volume = 9 x 9 x 9
volume = 729
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Answer:
-18
Step-by-step explanation:
Hope that helps
You do 3(-6) to get neg 18
Answer:
a.1.90 years
Step-by-step explanation:
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
So it is z with a pvalue of 
, so 
Now, find the margin of error M as such
In which 
is the standard deviation of the population and n is the size of the sample.
In this question:
So
So the correct answer is:
a.1.90 years
