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| rev | Admin | (Created page with "The annual force of interest credited to a savings account is defined by <math display = "block"> \delta_t = \frac{\frac{t^{2}}{100}}{3+\frac{t^{3}}{150}} </math> with <math>t</math> in years. Austin deposits 500 into this account at time 0. Calculate the time in years it will take for the fund to be worth 2000. <ul class="mw-excansopts"><li>6.7</li><li>8.8</li><li>14.2</li><li>16.5</li><li>18.9</li></ul> {{soacopyright | 2023 }}") | Nov 17'23 at 22:31 | +438 |