SOLUTION: I have tried and i thought that you would lug in 6 for x. but for some reason that doesnt seem right to me. can you please help me. Suppose that N=square root 16+4 models the numb

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Question 136214This question is from textbook Student Solutions Manual
: I have tried and i thought that you would lug in 6 for x. but for some reason that doesnt seem right to me. can you please help me.
Suppose that N=square root 16+4 models the number of cases of an infection, in millions, of a disease x years from now.
In approximately how many years will there be 6 million cases?
This question is from textbook Student Solutions Manual

Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!
No, you need to solve your equation for x, and then substitute 6 for N.

You don't say where x goes in your formula, but I'm going to presume that it goes with the 4 and that both the 16 and the 4 are under the radical, like this:



Square both sides:




Now substitute 6 for N and do the arithmetic.
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