Good evening.
The long side is
a, so, we have
a = 6.3 cmNow we put this in the equation:
I would have to say 85 but thats just a guess.
Answer:
saving money
Step-by-step explanation:
it wouldn't be none with repaid yet!
Answer:
![a=-8\\ \\b=0.1](https://tex.z-dn.net/?f=a%3D-8%5C%5C%20%5C%5Cb%3D0.1)
Step-by-step explanation:
Use formula
![Z=\dfrac{X-\mu}{\sigma},](https://tex.z-dn.net/?f=Z%3D%5Cdfrac%7BX-%5Cmu%7D%7B%5Csigma%7D%2C)
where
= new score
= old score
= the mean
= standard deviation
In your case,
![\mu=80\\ \\\sigma=10](https://tex.z-dn.net/?f=%5Cmu%3D80%5C%5C%20%5C%5C%5Csigma%3D10)
Hence,
![Z=\dfrac{X-80}{10}\\ \\Z=\dfrac{X}{10}-\dfrac{80}{10}\\ \\Z=0.1X-8\\ \\Z=-8+0.1X](https://tex.z-dn.net/?f=Z%3D%5Cdfrac%7BX-80%7D%7B10%7D%5C%5C%20%5C%5CZ%3D%5Cdfrac%7BX%7D%7B10%7D-%5Cdfrac%7B80%7D%7B10%7D%5C%5C%20%5C%5CZ%3D0.1X-8%5C%5C%20%5C%5CZ%3D-8%2B0.1X)
So,
![a=-8\\ \\b=0.1](https://tex.z-dn.net/?f=a%3D-8%5C%5C%20%5C%5Cb%3D0.1)