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1 . Suppose $5,400 is invested in an account at an annual interest rate of 3.9% compounded continuously. How long (to the nearest tenth of a year)

1 . Suppose $5,400 is invested in an account at an annual interest rate of 3.9% compounded continuously. How long (to the nearest tenth of a year) will it take the investment to double in size? 


2 Let f(x) =x2 −14x + 40.


(a) Find the vertex.

(b) State the range of the function.

(c) On what interval is the function increasing 

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1) 18.1 years 2) a) x = 7 is the vertex... View the full answer

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