= 160 − − 3n − 160 = 0 n2 = = −3, = −160 1, a b c = −20 ± −(−3) (−3)2 − 4(1)(−160) −1560 ± −9.8 2(1) = t There is no real solution. The object never reaches a height of 100 meters. 649 = 3 2 ± Since the solutions are not integers, a polygon with 80 diagonals is not possible.
− = 160 n2 − 3n − 160 = 0 a = 1, b = −3, c = −160 = −20 ± −1560 −9.8 There is no real solution. The object never −(−3) ± t = (−3)2 − 4(1)(−160) 2(1) reaches a height of 100 meters. = 3 ± 649 2 Since the solutions are not integers, a polygon with 80 diagonals is not possible.
Downloadable-Solution-Manual-for-Precalculus-Concepts-Through-1.docx