Answer:
yes
Step-by-step explanation:
hahahaha thanks for your help
Answer:
2.83 s
Step-by-step explanation:
We are given that

When a rock reached the ground then h(t)=0


Using quadratic formula





Time cannot be negative .Therefore, negative value of t can not be possible.
Hence, the rock takes 2.83 sec to reach the ground.
The first one, second, and third
Answer:The ansewers are c and d.
Step-by-step explanation:
The function f(x)=x is really y=x.