Posted by **Miguel** on Thursday, March 24, 2011 at 11:29am.

Mobile ad spending. The amount spent worldwide in advertising on mobile devices can be estimated by f(x) =0.4x^2+0.01x+0.9. Where x is the number of years after 2005 and f(x) is in billions of dollars. When will worldwide mobile ad spending reaches $41 billion?

## Answer This Question

## Related Questions

- algebra - The amount spent worldwide in advertising on mobile devices can be ...
- maths - In the year 2000 there were 350 mobile phones users living in the small ...
- statistics - Webcredible, a UK-based consulting firm specializ- ing in websites...
- Stats PLEASE HELP!!! - Webcredible, a UK-based consulting firm specializ- ing in...
- math - An advertising agency conducted a survey and found that the number of ...
- math - An advertising agency conducted a survey and found that the number of ...
- Algebra - An advertising agency conducted a survey and found that the number of ...
- algebra - An advertising agency conducted a survey and found that the number of ...
- Algebra - An advertising agency conducted a survey and found that the number of ...
- college algebra - An advertising agency conducted a survey and found that the ...

More Related Questions