Answer:
7 seconds.
Step-by-step explanation:
We have been given that the height of a flare fired from the deck of a ship in distress can be modeled by
, where h is the height of the flare above water and t is the time in seconds.
The ball will hit the ground, when height will be 0 meters, so we will equate
to find the time when ball will hit the ground as:

Using quadratic formula, we will get:







Since time cannot be negative, therefore, it will take 7 seconds for the flare to hit the ground.
Answer:
slope= 2/3
Step-by-step explanation:
Slope intercept formula: y2-y1/x2-x1
5-7/5-8 = -2/-3 = 2/3
Answer:
I think its A
Step-by-step explanation:
I did the math and thats what i got even rounded up
Segment DF is 1/2 the length of Segment DE. Since the entire segment is DE and it's midpoint is at F, the segment would be broken into 2 equal segments in one. Segment DF and FE. Segment DF is congruent to Segment FE.
2n+6=2n+6
0=0
inconsistent solutions