Isolated bells ring clear, while bells crammed in a box have a muffled ring. if the sound of isolated bells is analogous to light from a gas discharge tube, then sound from the box crammed with bells is analogous to light from group of answer choices

1. a phosphorescent source.
2. none of these
3. an incandescent lamp.
4. a fluorescent lamp.
5. a laser.

that would be because of both gravity and friction. so     c

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .