Radicals picture attached below

The formula

represents the length of the hypotenuse of a right triangle with side lengths a and b, and we have to solve for b .

First we need to get rid of the radical and for that, we do squaring on both sides. That is

Now we need to get rid of a^2 and for that we do subtraction.

And finally we need to get rid of square, and for that we take radical to both sides

two data sets with the same median will not have the same varaibility

step-by-step explanation:

2 over 5 and 4 over 15

don’t know last one sorry

step-by-step explanation: