Answer:
y=2x-1
Step-by-step explanation:
For this we almost have the following equation:

We must match the equation to zero:

From here, we clear the value of t.
We have then:

We discard the negative root because we are looking for time:
Answer:
it will take him to reach the ground about:

seconds
Answer:
Step-by-step explanation:
300 hundred no explaination
30 millimeters is the difference between the two heights