Add all the like terms together
4x+4y+10
Answer:
Approximately the number of men is 203 and number of women is 47.
Step-by-step explanation:
It is given that the United States Air Force has 19 women for every 81 men enlisted.
It means the ratio between men and women is 81:19.
Sum of ratio is
Therefore for each 100 people, there are 81 men and 19 women.
Total number of peoples is 250.
In 250 members the number of men is
The numbers of persons cannot be a fraction values or a decimal value, therefore the number of men is 203.
In 250 members the number of women is
Therefore approximately the number of men is 203 and number of women is 47.
Answer:
I DO NOT UNDRESTAND THE QUESTION.
Answer:
Step-by-step explanation:
This is permutation question
<u>The formula for it: </u>
- N = b!/(b-s)!, where N- number of ways, b- number of books, s- number of slots
<u>Finding the answer:</u>
- N = 7!/(7-5)! = 7!/2! = 7*6*5*4*3 = 2520
Answer:
His 95% confidence interval is (0.065, 0.155).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
.
For this problem, we have that:
95% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
The lower limit of this interval is:
The upper limit of this interval is:
His 95% confidence interval is (0.065, 0.155).
