SOLUTION: N=x^ +2
this models the number of cases of an infection in millions of a disease x represents the number of years how do I solve for how many years will there be 7 millon case
Algebra ->
Square-cubic-other-roots
-> SOLUTION: N=x^ +2
this models the number of cases of an infection in millions of a disease x represents the number of years how do I solve for how many years will there be 7 millon case
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Question 178546: N=x^ +2
this models the number of cases of an infection in millions of a disease x represents the number of years how do I solve for how many years will there be 7 millon cases Answer by solver91311(24713) (Show Source):
You can put this solution on YOUR website!
I presume you mean the model to be ('^' does not mean 'squared', it means 'raise to the power of' and you have to specify the power. If you mean squared, then you need to write 'x^2' Ok?)
Substitute 7 for N:
Add -2 to both sides:
Take the positive square root:
years.
That is the exact answer. A numerical approximation is two years, two months, and 25 days.
