- #1
euro94
- 26
- 0
The height,h, in meters, of a weather balloon above the ground after t seconds can be modeled by the function h(t)=-2t^3 + 3t^2 +149t + 410 for 0< t < 10. When is the balloon exactly 980m above the ground?
980 = -2t^{3} + 3t^{2} +149t + 410
0 = -2t^{3} + 3t^{2} +149t - 570
980 = -2t^{3} + 3t^{2} +149t + 410
0 = -2t^{3} + 3t^{2} +149t - 570