Answer:
838.08 in³
Step-by-step explanation:
volume of tank = (36×24×24)+(½×3.14×12²×24)
= 20,736 + 5,425.92
= 26,161.92 in³
the remaining water = 27,000 - 26,161.92
= 838.08 in³
Answer:
105-9/2=48: Ms. Maya 105-48=57: Ms. Perez
Step-by-step explanation:
105-9 is 96 divided by 2 is 48 and 105-48 is 57 therefore Ms.Maya handed out 48 breakfasts and Ms.Perez handed out 57 breakfasts
Hey! The answer is: 0.56, 0.65, 4.56 ! Have a great day, bud!
Answer:
Hiya there!
Step-by-step explanation:
450-549
you can round up or down
<em><u>Hope this helped!</u></em> :D
Answer:
A sample of 18 is required.
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 Z-table as such z has a p-value of
.
That is z with a pvalue of
, so Z = 1.88.
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.
A previous study indicated that the standard deviation was 2.2 days.
This means that 
How large a sample must be selected if the company wants to be 92% confident that the true mean differs from the sample mean by no more than 1 day?
This is n for which M = 1. So



Rounding up:
A sample of 18 is required.