Question

The number N, in millions, of hearing impaired individuals of age x can be approximated by N=-0.00006x^2-0.1x+1.5. Approximate to the nearest million the number of hearing impaired individuals of age 25 and 40.

Answer 1

1.22

Answer 2

THX!!! >:D<

Answer 3

witch is that 4? age 25 or 40?

Answer 4

your formulae does not seem quite right. are you sure you have all the signs correct?

Answer 5

1.22

Answer 6

is this correct?
\[N=-\frac{6x^{2}}{10^{5}}-\frac{x}{10}+1.5\]

Answer 7

THX everyone!!!