Problem would be $424 x .40
and the answer would be <span>169.6 USD</span>
Step-by-step explanation:
We know that,
![Z=\dfrac{X-\mu}{\sigma}](https://tex.z-dn.net/?f=Z%3D%5Cdfrac%7BX-%5Cmu%7D%7B%5Csigma%7D)
Where,
X = raw score = 84
μ = mean = 68
σ = standard deviation = 10
Putting the values,
![Z=\dfrac{84-68}{10}=1.6](https://tex.z-dn.net/?f=Z%3D%5Cdfrac%7B84-68%7D%7B10%7D%3D1.6)
The percent of his sales that were less than or equal to 84 inches, is
![P(Z\leq 1.6)=0.9452=94.52\%\approx 94.5\%](https://tex.z-dn.net/?f=P%28Z%5Cleq%201.6%29%3D0.9452%3D94.52%5C%25%5Capprox%2094.5%5C%25)
Therefore, the remaining 100-94.5=5.5% were more than 84 inches.
Answer:
x=9
Step-by-step explanation:
Using elimination method.
Add equation 1 to equation 2
x + y = 11
x - y = 7
---------------
2x + 0 = 18
Divide both sides by 2
2x = 18
---- ----
2 2
x = 9
Answer C
Step-by-step explanation:
Answer:
A.
Step-by-step explanation:
the correct answer is A. y=|x-2|+3.
For more details see the attachment.