Hi!
To find the semmetry between the nonagon just do this:
360 / 9 = 40
The regular nonagon has rotational symmetry of 40 degrees!
Answer: 87.5
Step-by-step explanation: 1cm x 25cm = 87.5
Answer:
The value of the test statistic is 
Step-by-step explanation:
The null hypothesis is:

The alternate hypotesis is:

Our test statistic is:

In which X is the sample mean,
is the null hypothesis value,
is the standard deviation and n is the size of the sample.
In this problem:

So



The value of the test statistic is 
Answer:
B.28, 4 + (6*4) = 24 + 4 = 28
Answer:
he would have 145 dallors after baying his bills
Step-by-step explanation: