Question

PLEASE HELP!! 100 POINTS!!

Answer 1

Answer:

A. 16 m

B.  t = 2 ;  6

C. 8 seconds

Step-by-step explanation:

see attached image

Answer 2

Answer:

A. 16 m

B. At t = 2 and t = 6

C. 8 seconds

Step-by-step explanation:

Maximum height is at the vertex

(4,16). So maximum height is 16 m at t = 4

The rocket is at a height of 12m at two distinct times:

At 2 seconds and again at 6 seconds

The rocket is in air when the height is not zero, I.e between t=0 and t=8

8-0 = 8 seconds