Answer:
z = 6
Step-by-step explanation:

Answer: the formula is : β = 180° - α
A = 6 * a² * sin(α)
V = a³ * (1-cos(α)) * √1+2cos(α)
Sorry, i don't know any examples .
Step-by-step explanation:
Answer:
The area of the circle is equal to
.
Step-by-step explanation:
Given that,
The area of sector is, 
The central angle is 
We need to find the area of circle.
We know that,

So, the area of the circle is equal to
.
Answer:
0.9999985 = 99.99985% probability that in a day, there will be at least 1 birth.
Step-by-step explanation:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:
In which
x is the number of sucesses
e = 2.71828 is the Euler number
is the mean in the given interval.
Assume that the mean number of births per day at this hospital is 13.4224.
This means that 
Find the probability that in a day, there will be at least 1 birth.
This is:

In which
Then

0.9999985 = 99.99985% probability that in a day, there will be at least 1 birth.