F−1(f(x)) = f(f−1(x)) =

Given:

To find:

The missing value.

Solution:

We have,

      ...(i)

We know that, if is a function and is its inverse function, then

         ...(ii)

From (i) and (ii), we get

Missing value =

Therefore, the missing value is , i.e., .

answer: give more info

step-by-step explanation:

15% chance.

step-by-step explanation:

3/10 times, the 5 year old will get a tablet. 5/10 times, the 13 yer old will get a tablet. multiply both fractions to get 15/100 times, both would have a tablet.