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
An irrational number is always a real number - false
A rational number cannot be an irrational number. - true, it is rational by definition
An integer will always be a rational number - true, integers are rational
A natural number cannot be an integer. - it can, for example 42
Positive angles that are coterminous with 112 degrees are
472 degrees & 832 degrees
- <F=180-106+29=180-135=45°
In both triangles
Hence both triangles are similar by AA congruency
The correct answer is letter A
