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.
To approximate the number of hearing impaired people of age 45 and 70 using the given equation N = 0.00006x^2 - 0.1x + 1.1, substitute the respective values of x into the equation and round the result to the nearest million.
For age 45:
N = 0.00006(45)^2 - 0.1(45) + 1.1
N ≈ 0.00006(2025) - 4.5 + 1.1
N ≈ 0.1215 - 4.5 + 1.1
N ≈ -3.2785
Since the result is negative, we cannot have a negative number of hearing impaired people. Therefore, we round the result to the nearest million, which is 0 million.
For age 70:
N = 0.00006(70)^2 - 0.1(70) + 1.1
N ≈ 0.00006(4900) - 7 + 1.1
N ≈ 0.294 - 7 + 1.1
N ≈ -5.606
Again, the result is negative, so we round it to the nearest million, which is 0 million.
Therefore, the approximate number of hearing impaired people of age 45 and 70 is 0 million each.