Answer:
<h3>20</h3>
Step-by-step explanation:
Standard deviation of the mean is expressed as:
SM = s/√n
s is the standard deviation of all invoices
n is the sample size of the invoiced
Given
s = $200
n = 100
Required
Standard deviation of the mean
Substitute the given parameters into the given equation
SM = 200/√100
SM = 200/10
SM = 20
Hence the standard deviation of xbar is 20
Answer: 70 degrees
Step-by-step explanation:
An exterior angle and the interior angle it corresponds to are supplementary.
we are given

we can use vertex form parabola formula

so, we can complete x square




so, option-A........................Answer
Answer:
Gas up in my room I don’t know how much you have to do that yet but
Step-by-step explanation:
Abc news I didn’t see you yesterday I didn’t answer you I didn’t answer your phone I didn’t answer your question I don’t understand why
I think the answer is 20 but I'm not sure