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) =x^{2 }−14x + 40.

(a) Find the vertex.

(b) State the range of the function.

(c) On what interval is the function increasing

#### Top Answer

The way to approach this... View the full answer

#### Sign up to view the full answer

#### Other Answers

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

1) T he investment will be doubled in 17.77 years . 2) (a) The... View the full answer