Posted by **Lacy** on Sunday, July 31, 2011 at 8:51pm.

The # N, in millions, of hearing impaired individuals of age X can be approximated by N= 0.00006x^3 + 0.006x^2 - 0.1x +1.4. Approximate to the nearest million the # of hearing impaired individuals of ages 25 and 40. 25= 1.75 and 40= 3 (those are millions!). I know I insert those values but I do NOT understand where I put the parenthesis in the equation!Obviously putting it after the x or before the x makes a BIG difference. HELP!!

- algebra (college) -
**Henry**, Monday, August 1, 2011 at 4:34pm
N = (6*10^-5)x^3 + (600*10^-5)x^2 -0.1x+1.4.

N = (6*10^-5)(1.75)^3 + (600^10^-5)(1.75)^2 - 0.1x + 1.4,

N = (6*10^-5)5.36 + (600*10^-5)3.06

- 0.175 + 1.4,

N = 35.22*10^-5 + 1836*10^-5 - 0.175 + 1.4,

N = 1871.2 *10^-5 + 1.23,

N = 0.018712 + 1.23 = 1.24 Million.

Part 2: Use same procedure except X = 3.

## Answer this Question

## Related Questions

- algebra - The number N, in millions, of hearing impaired individuals of age x ...
- algebra - The number N, in millions, of hearing impaired people of age x can be ...
- algebra - The number N, in millions, of hearing impaired people of age x can be ...
- algebra2 - another one i dont get. the number N im millions of hearing impaired ...
- CENCEPTS IN HEALTHCARE - what is the procedures and resources available for ...
- Inclusive language - Is it acceptable to write with no changes whatsoever "The ...
- spanish - In a reply to "Milkayelle-5/2/07" I'm pretty sure you meant to type "...
- healthcare - Write a memo to the staff of all 3 of Kyosha Valley’s locations ...
- statistics - (10 pts) Using diaries for many weeks, a study on the lifestyles of...
- statistics - A researcher theorized that people can hear better when they have ...