Question

How do I solve this?

Answer 1

Explanation:

The first thing you have to do, is rewrite the given expression

`Ar^(-2) = (A)/(r^(2) )`

Then you plug in the given values

`(A)/(r^(2) ) = (50.265)/(4^(2) )`

Finally you simplify

`(50.265)/(4^(2) )=(50.265)/(16) = 3.142`