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:
X = 6.25 ft.
Step-by-step explanation:
From the figure:
∵ Two angles in the small flag = the corresponding angles in the large flag
∴ Two flags are similar
∴ Their sides are proportional
∴ 
∴ x = 6.25 ft
When two lines are parallel and a transversal is drawn, vertically opposite angles will be equal.
This means that x° and 62° are the same, indicating that the value of x is 62°.
Hope it helps. :)
Answer: 60°
Step-by-step explanation:
