Answer:
4.6.
Step-by-step explanation:
The rocket hits the ground when h(t) = 0. So

Solving a quadratic equation:
Given a second order polynomial expressed by the following equation:
.
This polynomial has roots
such that
, given by the following formulas:



In this question:

So

Then



Time is a positive measure, so the answer is 4.6.
Answer: C
Step-by-step explanation:
Because i said so
Find the area of each triangle then and them together, so:
1/2(15×8) =60
plus
1/2(15×8) =60
plus
1/2(23×8)=92
plus
1/2(23×8)=92
60+60+92+92=304
304 is the total area.