Please answer this today
2 answers:
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Answer:
Step-by-step explanation:
First of all we need to understand what a perfect square is:
It is an integer which is the square of another integer integer; in other words, it is the product of some integer with itself.
For example: 9, this is a square number since itt equals and 3x3 = 9
Answer:
See explanation!
Step-by-step explanation:
Let us first give some principle theory to aid our solution.
Considering two functions and
, in order to show that function
which is the inverse of .
Now let as solve our problem. We are given the following:
Method A: Show that these are inverse functions by finding f^-1 (x) and showing that it is the same as g(x).
Let us take and "exchanging" our variables we have
which is exactly the same with our given function of , so proved!
Method B: Show that these are inverse functions by showing that when the output of one function is used for the input of the other function, the final output is equal to the original input value. (you may choose any initial input)
For this case we will use a simple input let us say . Thus taking the
function and plugging in we have:
Now let us take the output of which is
and use it the input to our second function of
, so we have:
so the output of the second function is equal to the original input value of the first function, hence proved!
Method C: Verify that these are the inverse function by showing that f(g(x)) = x AND g(f(x)) = x.
Basically we are asked to prove that both
To do so, we just replace one function into the value of the other function as follow:
Lets repeat now for the opposite as follow:
Hence proved!
Let the number of men and the number of women in the beginning be x and y
Now,
Now, In 2nd case,
No. Of men=x-63 and no. Of women =y-12
Now,the ratio becomes
Now,we have, 2x=5y
Putting the value of Y=56 in 2x=5y,we get,
Hence, the number of men was 140 and the no. of women was 56
Hi...I am from India.. Where are you from?