Answer:
50Hz x .10m = 5 m/s
20 m/s divided by .50m = 40Hz
80 m/s divided by .20m = 400Hz
120 m/s divided by .40m = 300Hz
340 m/s divided by 440Hz = .77m
Answer:
The correct option is A.
Step-by-step explanation:
The given equation is

Put x=0, in the given equation.

The y-intercept is (0,32).
Put y=0, to find the x-intercept.





Therefore the y-intercepts are (-4,0) and (8,0).
The vertex of a parabola
is


Put x=2 in the given function.



The vertex is (2,36).
Therefore option A is correct.
Answer:
2.6m/s
Step-by-step explanation:
