Question

Sound waves can be ranked by their intensity, I, given in this formula, where r is the distance from the source of a sound with a power output of P.


`P = 4xr^(2) .`

Which equation correctly rewrites the formula to solve for I?

A.
`I = (P)/(4xr^(2) )`
B.
`I = (Pxr^(2) )/(4)`
C.
`I = 4Pxr^(2)`
D.
`I = (4P)/(xr^(2) )`

Answer 1

Answer: C correctly rewrites the formula to solve I

Explanation: