Answer:
the answer is 9
Step-by-step explanation:
divide 45 by 5 and that is your answer
Answer:
Area of parallelogram divided by 2 is the triangles are.
Area of parallelogram = B x H and triangle area = 1/2 x B x H
Step-by-step explanation:
Answer:
$2.71
Step-by-step explanation:
Hey!
I multiplied $2.71 by 2 and that gave me $5.42
Distribute the negative b and negative one to he terms in the parentheses
In an expression, if there area brackets, you always have to expand THEN solve it
Answer:
The margin of error for a 95% confidence interval of the mean cost of the first year of owning and caring for a cat is of $43.12.
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
.
That is z with a pvalue of
, so Z = 1.96.
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.
Sample of 81
This means that 
What is the margin of error for a 95% confidence interval of the mean cost of the first year of owning and caring for a cat?



The margin of error for a 95% confidence interval of the mean cost of the first year of owning and caring for a cat is of $43.12.