Answer:
The mean number of the students who develop hypertension over a life time is 7.8.
Step-by-step explanation:
For each person, there are only two possible outcomes, either they will develop hypertension, or they will not. The probability of a person developing hypertension is independent of any other person, which means that the binomial probability distribution is used to solve this question.
Binomial probability distribution
Probability of exactly x successes on n repeated trials, with p probability.
The expected value of the binomial distribution is:
Suppose that the probability that a person will develop hypertension over a life time is 60%.
This means that 
13 graduating students from the same college are selected at random.
This means that 
Find the mean number of the students who develop hypertension over a life time
The mean number of the students who develop hypertension over a life time is 7.8.
The answer is D. Because if it's 5x the width then make length 5x and width x so 12x because two lengths and two widths makes it 12x=96 divide and you get x=8 which means width is 8 cm
Answer: 2(7x + 3y + 4) [unsimplified] or 14x + 6y + 8 [simplified]
Step-by-step explanation: The perimeter of a parallelogram is 2 * (the two sides.)
Adding 5x + 4 and 2x + 3y, we get 7x + 3y + 4 by combining like terms in the x terms.
Now, we multiply by 2. This is 2(7x + 3y + 4) or 14x + 6y + 8
Answer: $8.88
Assuming its 8:00am to 4:15pm and took a 1 hour break then he worked for a total of 7 hours and 15 minutes. In decimals that would be 7.25 hours. We want to find how much he makes in 1 hour. So, because we want to find 1 hour we divide the hours by 7.25 and the money by 7.25.
64.38 / 7.25 = 8.88.
There for, he makes $8.88.
Answer:
416
Step-by-step explanation:
Well I know 8 x 100=800 so I did 8 x 400=3,200
Then I added 8 x 10=80 which is 3,280
and from there I did 8 x 6=48
And then what's 3,280+48=3,328 because 3,280+40=3,320 and then add 8=3,328
Hope it helps
