help

A research analyst performs database searches for a variety of clients. Accolding to her log, a new search requires approximately 470 minutes. Repeated requests on the same or similar topic take less and less time, as her log shows; Moquent no Time (n.) 47.0 35.0 33.5 26.5 26.0 24,8 24.5 20.0 Use the following table for calculation Learning curve coefficients 1.900 70x 754 BO 05% SOX Unit Unit Total Unit Total Unit Total Unit Total Unit Total Number Tino Timo Yine Time Time Time Time Time Time TI 1 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 2 0.700 1.700 0.750 1.750 0.500 1.800 0.850 1.850 0.900 3 0.568 2.268 0.034 2.384 0.702 2.502 0.773 2.623 0.8146 2.740 4 0.400 2.758 0.562 2.946 0.640 3.142 0.723 3.345 0.819 3.556 5 0.437 3.195 0.513 3.459 0.595 3.738 0.680 4.031 0.783 4.330 6 0.393 3.593 0.475 3.934 0.562 4.299 0.657 4.688 0.782 5.101 7 0.387 3.960 0.446 4.380 0.534 4.834 0.034 5.322 0.744 5.45 0.343 4.303 0.422 4.302 0.512 5.346 0.614 5.936 0.720 6.574 5.32 4-626 0.402 5.204 0.493 5.829 0.597 5.533 0.710 7.200 10 D/306 1.932 0:35 5.589 0.477 6.315 0.583 7.116 0.705 7.994 0.291 5.223 0.370 5.958 0.662 6.777 0.570 7.686 0.693 8.689 12 0.278 5,501 0.357 6.315 0.449 7.227 0.550 8.244 8.685 9.374 13 0.267 5.769 0.345 6.560 0.438 7.665 548 8.792 0.677 10.052 14 0.257 6.026 0.336 6.9940.428 6.092 0.539 9.331 0.070 10.721 15 2486.274 0.325 7.319 9.418 8.511 0.530 9.861 0.663 11.384 13 14 15 16 17 18 199NPARNRSONAS 20 21 22 23 24 25 26 27 28 29 30 0.267 5.769 3.345 6.560 0.438 7.655 0.548 8.792 1.677 10.052 0.257 5.025 0.334 6.994 6.428 8.392 6.539 9.331 0.670 10.721 0.248 6.274 0.325 7.319 0.418 8.511 0.530 9.861 0.663 11.384 8.246 6.514 0.316 7.635 0.410 8.920 0.522 16.383 0.656 12.040 0.233 6.747 0.309 7.944 0.402 9.322 8.515 18.898 6.658 12.690 B.226 6.973 0.301 8.245 0.394 9.716 0.508 11.405 0.644 13.334 0.220 7.192 0.295 8.540 0.388 10.104 0.501 11.907 6.639 13.974 0.214 7.407 0.288 8.828 0.381 10.485 0.495 12.402 0.634 14.608 B.209 7.615 0.283 9.111 0.375 16.860 0.490 12.892 0.630 15.237 0.204 7.819 0.277 9.388 0.370 11.230 0.484 13.376 0.625 15.862 0.199 8.018 0.272 9.660 0.364 11.594 6.479 13.856 0.621 16.483 0.195 8.213 0.267 9.928 0.359 11.954 0.475 14.331 0.617 17.100 0.191 8.404 @.263 10.191 0.355 12.309 0.470 24.802 0.613 17.713 0.187 8.591 6.259 10.449 6.356 12.659 0.466 15.267 0.609 18.323 0.183 8.774 0.255 10.704 0.346 13.005 0.462 15.728 0.606 18.929 0.180 8.954 0.251 10.955 0.342 13.347 0.458 16.186 0.603 19.531 0.177 9.131 0.247 11.202 0.338 13.685 0.454 16.640 0.599 28.131 0.174 9.305 0.244 11.446 0.335 14.020 0.450 17.092 0.596 20.727 How many additional searches will it take until the search time gets down to 15 minutes? (Base your calculation on an 'average learning rate rounded to the nearest percent. Do not round intermediate calculations. Round your 'n' up to the next whole number, Enter your final answer as a whole number.) Number of additional searches