Answer:
15 boys selected
Step-by-step explanation:
Given
--- The population
--- The sample selected
-- The proportion of boys
Required
The expected number of boys selected
The expected number is calculated by multiplying the sample size by the proportion of boys.
So, we have:
--- approximated
The average value of the given function is .
According to the statement
we have given that the function f(x) and we have to find the average value of that function.
So, For this purpose, we know that the
The given function f(x) is
And now integrate this function with the limit 0 to a then
Now integrate this then
Then the value becomes according to the integration rules is:
Now put the limits then answer will become as output is:
Now solve this equation then
Now
This is the value which represent the average of the given function in the statement.
So, The average value of the given function is .
Learn more about integration here
brainly.com/question/22008756
#SPJ4
You take 26 and multiply it by 1 1/2 to get 39 employees
Answer:
4 squares
Step-by-step explanation:
If the rectangle is only 3 cm wide, only one square will be able to fit in a row. Since the square is 12 cm long, 4 squares can fit. This can be found by 12/3 which = 4
Inverse of a function is also a function, if and only if the function is One - to - One. This means no y value occurs in the range of the function more than once.
If we observe the given options, we can see option B, C and D have some repeated values of y. Only the function in option A is one to one. Hence the inverse of function given in option A will also be a function.
So, the answer to this question is option A