
Let the number be x, now the above statement can be written as :
Answer:
9/5
Step-by-step explanation:
solve the original equation for x
-4× + 3 = 1x +(-6)
-1x
-5x + 3 = -6
-3
-5x = -9
/-5
x = 9/5
CHECK
-4(9/5) + 3 = 1(9/5) +(-6)
-21/5 = -21/5
Answer:
18.88% probability that three or four customers will arrive during the next 30 minutes
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 time interval.
Average rate of 6.4 per 30 minutes.
This means that 
What is the probability that three or four customers will arrive during the next 30 minutes?





18.88% probability that three or four customers will arrive during the next 30 minutes
Answer:

Step-by-step explanation:
To solve this problem use the formula "<u><em>Difference of squares</em></u>":

In this problem we have the following equation

This we can write it in the following way

Then if a = x and b = 8 then:

Then the product of both factors is equal to zero when:

Or
