x = -2.5 is a vertical line. The vertical graph of the equation is shown in the image attached below.
<h3>What is the Equation of a Vertical Line?</h3>
The slope of a vertical line is undefined, therefore, the equation of a vertical line is expressed as x = a, where a is the x-intercept.
Given x = -2.5, the equation suggests it is a vertical line, where the line intercepts the x-axis at -2.5, which is the x-intercepts.
Thus, the graph for x = 2.5 is shown in the diagram below.
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Answer:
1/3
Step-by-step explanation:
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Answer: The mean number of checks written per day 
Standard deviation
Variance
Step-by-step explanation:
Given : The total number of checks wrote by person in a year = 126
Assume that the year is not a leap year.
Then 1 year = 365 days
Let the random variable x represent the number of checks he wrote in one day.
Then , the mean number of checks wrote by person each days id=s given by :-
Since , the distribution is Poisson distribution , then the variance must equal to the mean value i.e. 
Standard deviation : 
Answer:
Step-by-step explanation:
a. 0.315 = 3.15 x 10^-1
b. 5,820,000,000 = 5.82 x 10^9
Answer:
Step-by-step explanation:
The sum of 83 and a number would be as an expression, where 
is "said number".
