3 years ago

Pllzzzz Help Is Needed.

Mathematics

1 answer:

posledela3 years ago

8 0

$f(1)=1$
..................

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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?

Nadusha1986 [10]

Answer:

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

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