I dont know this i think you can use a calculater if you have one
Answer:
Center and radius of the circle of the equation 
center = ( 4,9) Radius = 1
Step-by-step explanation:
Given -
Equation of circle is 
The equation of circle is represented by
where a and b are center of circle and radius r
Comparing these equation
then a = 4 and b = 9 and r = 1
16 or more books sold in a day will include two intervals from the given table:
a) 16 - 20 books sold.
Probability = 0.201
b) 21 - 25 books sold.
Probability = ?
Since the table gives the probability distribution, the sum of all the probabilities must be equal to 1. We are given the probabilities of 4 out 5 intervals. So in order to find the probability of the 5th interval (21-25) we can subtract the sum of probabilities of rest of the intervals from 1.
So, P(21 - 25) = 0.019
In order to find the probability of 16 or more books sold we need to sum the probabilities of both these intervals.
So, the probability of 16 or more books being sold on a given day = 0.201 + 0.019 = 0.220
Answer:
Step-by-step explanation:
we have to see where the two graphs intercept
it happens when x = 0 and when x = 1
