algebra
posted by Pam .
The number N, in millions, of hearing impaired individuals of age x can be approximated by:
N = 0.00006x^3 + 0.006x^2  0.1x + 1.5
Approximate to the nearest million the number of hearing impaired individuals of ages 45  70.

Because x is a discrete variable,as in 45,46, 47, ... it cannot be integrated by continous integration. But numerical methods can be used. I don't know if you have done that. I also assume you are not using the program MATHLAB.
So, I hate to tell you to add up all the N for x=45,46,47, ...
I did it on a numerical integration
http://mste.illinois.edu/activity/integration/#description and got 99 million. Here you do it, and in that web page paste this in the formula
formula: .00006*x^3 + .006*x^2  .1*x+1.5
left endpoint; 45
right enpoint: 70
number of partitions: 25 ie, (7045)
Respond to this Question
Similar Questions

Inclusive language
Is it acceptable to write with no changes whatsoever "The hearingimpaired child needs special accommodations for the field trip? 
algebra2
another one i don't get. the number N im millions of hearing impaired individuals of age X can be approximated by n=0.00006x by power of two+0.0006x power of two0.1x+1.7 approxmate to the nearest millions the number of hearing impaired … 
algebra
The number N, in millions, of hearing impaired people of age x can be approximated by N=0.00006x^2  o1x + 1.1.Approximate to the nearest million the number of hearing impaired people of age 45 and 70. 
algebra
The number N, in millions, of hearing impaired people of age x can be approximated by N=0.00006x^2  o1x + 1.1.Approximate to the nearest million the number of hearing impaired people of age 45 and 70. 
statistics
A researcher theorized that people can hear better when they have just eaten a large meal. Six individuals were randomly assigned to eat either a large meal or a small meal. After eating the meal, their hearing was tested. The hearing … 
statistics
A researcher theorized that people can hear better when they have just eaten a large meal. Six individuals were randomly assigned to eat either a large meal or a small meal. After eating the meal, their hearing was tested. The hearing … 
algebra (college)
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= … 
CENCEPTS IN HEALTHCARE
what is the procedures and resources available for assisting patients who use English as a second language, who is hearing impaired, sight impaired, or who have any other type of physical or diversity related disposition that should … 
statistics
(10 pts) Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted. The students kept track of many lifestyle variables including how many hours of sleep obtained on a typical day. Researchers … 
concepts in healthcare
Explain procedures and resources available for assisting patients with special needs such as those for whom English is a second language, are hearing impaired, sight impaired, or who have any other type of physical or diversity related …