Answer:
$17
Step-by-step explanation:
since your finding retail price u need to do 10×.7 and that would be 7 then and the 7 to 10
Answer:
a and d
Step-by-step explanation:
If there are 2 pionts on the same VIRTICAL (Upwards and downwards) line, then it is not a function
Answer:
The standard deviation of the sample mean is
Step-by-step explanation:
From the question we are told that
The mean is ![\= x = 60](https://tex.z-dn.net/?f=%5C%3D%20x%20%20%3D%20%2060)
The standard deviation is ![\sigma = 21](https://tex.z-dn.net/?f=%5Csigma%20%20%3D%20%2021)
The sample size is ![n = 60](https://tex.z-dn.net/?f=n%20%20%3D%20%2060)
Generally the standard deviation of the sample mean is mathematically represented as
![\sigma _ {\= x } = \frac{\sigma }{\sqrt{n} }](https://tex.z-dn.net/?f=%5Csigma%20_%20%7B%5C%3D%20%20x%20%7D%20%3D%20%20%5Cfrac%7B%5Csigma%20%20%7D%7B%5Csqrt%7Bn%7D%20%7D)
substituting values
![\sigma _ {\= x } = \frac{ 21 }{\sqrt{60} }](https://tex.z-dn.net/?f=%5Csigma%20_%20%7B%5C%3D%20%20x%20%7D%20%3D%20%20%5Cfrac%7B%2021%20%7D%7B%5Csqrt%7B60%7D%20%7D)
![\sigma _ {\= x } = 2.711](https://tex.z-dn.net/?f=%5Csigma%20_%20%7B%5C%3D%20%20x%20%7D%20%3D%202.711)
Answer:
4x² / 4x² = 1
Step-by-step explanation:
Anything divided by itself is always 1