Answer:

Step-by-step explanation:
General equation of a parabola that opens up is
, a>0
So equation becomes
which implies option A and option B can never be true for this parabola.
Also this parabola's vertex lies in 3rd quadrant where coordinates of both x and y will be negative.
So, the equation of parabola will be of the form 
Hence, option 4 that is
is correct.
Answer:
1104seconds and5 milliseconds
(8209-6000)/2
=3209/2
=1104.5
The scientists will reach the ocean floor after 1104.5 seconds.
PS
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Answer:
300
Step-by-step explanation:
there are 100 cm in a meter (I believe)
Answer:
fnjfc ij vcd d GB hhv
Step-by-step explanation:
tb f thg. kufc if fyi uuj
You would need to remove (-2, 1)