19/4 can also be written as 16/4+3/4 so the mixed fraction will be 4+3/4...in other words 4 3/4. And to check it, you can multiply the denominator (here, 4) by the whole number(here, 4) and then add the numerator(here, 3)
Which adds up to 19/4! :)
8x-5 would be the largest angle because as you approach a larger and larger x value, 8x-5 will skyrocket past the other two. Also when you plug in a low value like 1, 8x-5=3, which is still higher than the other two. The only exception is if you plug in a negative x value which is impossible.
8x-5
You would multiply 236 days by 7.5 hours each day then divide that by 26,450 because that's the overall amount you would get 14.94350
That rounded to the nearest cent would be $14.94,per hour
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 : 