Answer:
iyge4dutgn
Step-by-step explanation:
n8uj98ju6g
Answer: 3.712 hours or more
Step-by-step explanation:
Let X be the random variable that denotes the time required to complete a product.
X is normally distributed.

Let x be the times it takes to complete a random unit in order to be in the top 10% (right tail) of the time distribution.
Then, 
![P(z>\dfrac{x-3.2}{\sigma})=0.10\ \ \ [z=\dfrac{x-\mu}{\sigma}]](https://tex.z-dn.net/?f=P%28z%3E%5Cdfrac%7Bx-3.2%7D%7B%5Csigma%7D%29%3D0.10%5C%20%5C%20%5C%20%5Bz%3D%5Cdfrac%7Bx-%5Cmu%7D%7B%5Csigma%7D%5D)
As,
[By z-table]
Then,

So, it will take 3.712 hours or more to complete a random unit in order to be in the top 10% (right tail) of the time distribution.
Answer:
3a^2+8/6a^2
Step-by-step explanation:
there ya go hope this helps
Answer:
-5 degrees per hour
Step-by-step explanation:
In 10 hours, the temperature dropped -50 degrees (38 + 12, and make it negative because the temperature went down, not up).
So divide -50 by 10
-50/10 = -5
The decimal representation for 4/5 would be,
0.8
Hope it helped. It's all I could do.