Answer:
128.57 degrees per angle
Step-by-step explanation:
There is a total of 900 degrees in a seven sided polygon. Divide the number by seven and you get your answer.
Answer:
A sample of 17 must be selected.
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 = 2.054.
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.
The standard deviation from a previous study is 4 hours.
This means that 
How large a sample must be selected if he wants to be 96% confident of finding whether the true mean differs from the sample mean by 2 hours?
A sample of n is required.
n is found for M = 2. So



Simplifying both sides by 2:



Rounding up:
A sample of 17 must be selected.
HEY THERE !!
AS WE KNOW A HEXAGON'S ALL ANGLES ARE 720°
SO HERE X = 720° - all rest angle's add
or 160+75+132+113+108= 588
x = 720 - 588
x = 132 °
HOPE IT HELPED YOU
3(x-9)=-3
3x-27=-3
3x=24
X=8
Check: 3(8-9)=-3
So your number is 8
Answer:4.5 cups of sugar
Step-by-step explanation:
Okay so 24 cookies is 2 dozen
1 cup of sugar would be used for every 8 cookies
3 dozen is equal to 36 cookies
36/8=4.5 so you would need 4.5 cups of sugar