Answer:
The mean for Z is 40.
The standard deviation for Z is 25.
Step-by-step explanation:
We are given the following in the question:
X: daily work hours.
The average daily work hours are 8 hours, with a standard deviation of 5.
Z denote weekly work hours.
We have to find the mean and standard deviation for Z.
The mean for Z is 40.
We use the property:
Thus, the standard deviation for Z is 25.
Answer: 
Step-by-step explanation:
Since, If a quadrilateral is inscribed in a circle then the sum of one pair of opposite angles must be equal to 180°.
And, here quadrilateral OPQR is inscribed in circle N.
Thus, 
-------(1)
And, 
-------(2)
According to the question,
, 
And, 
-------(3)
We have to find out 
or 
.
Thus, from equation (1), 
⇒
Therefore, From equation (3), 
⇒
If the area of the entire thing is 21.66 square inches, you can do the area of the entire thing-the area of the rectangle. This is, 21.66-4.6*3.8. 21.66-17.48, which =4.18.
Answer:
1 < x < 5
Step-by-step explanation:
Inequalities of the type | x | < a , have solution of the form
- a < x < a
Given
2 | x - 3 | < 4 ( divide both sides by 2 )
| x - 3 | < 2 , then
- 2 < x - 3 < 2 ( add 3 to each interval )
1 < x < 5
