SOLUTION: The most significant time to be aware of the UV index on a sunny day is modelled by the function f(x)=-0.08(x-13)^2+9 where x is the time of day on a 24 hour clock and f(x) represe

Question 1006172: The most significant time to be aware of the UV index on a sunny day is modelled by the function f(x)=-0.08(x-13)^2+9 where x is the time of day on a 24 hour clock and f(x) represents the uv index.Whats is the UV index at 2 pm? when will the UV index be 7?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
At 2 PM, with 24 hr clock,

UV index is 8.92
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If UV index is ,

This would be 6 PM on the 24 hr clock
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