5. Harold rolls his $800 000 of savings into an annuity account. He wants the money to last for 15
years
(a) Given that Harold can withdraw $6284.75 each month, find the annual interest rate,
compounded monthly, of the account.
[3]
(b) How much longer would Harold's money last if he withdrew only $5000 each month?
[3]

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation:

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

ya