A ball is thrown into the air by a baby alien on a planet in the system of Alpha Centauri with a velocity of 47 ft/s. Its height in feet after t seconds is given by y = 477 - 12t2.
a.) Find the average velocity for the time period beginning when to= 2 second and lasting for the given time.
t=.01 sec:
t=.005 sec:
t = .002 sec :
t = .001 sec:
b.) Estimate the instanteneous velocity when t = 2.

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm

It’s either a or c as the answer.