mahmudabiazp3ekot
29.01.2020 •
Mathematics
19. for livesh's model a rocket, he uses the equation h=-490^2+ 1120t. when is the height of the model a rocket 640 centimeters?
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Ответ:
t = 1.143 s
Step-by-step explanation:
The equation he uses to model the height of the rocket in cm, as function of time is
h(t) = -490 t^2 + 1120t
We can plot this equation using a graphing tool
Please, see attached picture
The rocket reaches his maximum height (640 cm) at
t = 1.143 s
Ответ:
1.205 × 10^7
Step-by-step explanation: