Answer:
HH TT HT TH
Step-by-step explanation:
My extremely bad makeshift tree diagram:
the first column is our first flip, second column is our second
H
H-
T
possible outcomes -
H
T -
T
Step-by-step explanation:
where does it cross the y-axis ?
at y = -8
Set the two equations equal to each other and solve for X
Hello ! You’re answer will be 2x^2+7x-4.
Hope this helps ! :)
Answer:
2000 meters
Step-by-step explanation:
When the motorboat is moving downstream, its speed relative to the ground is 18 km/h, so its speed relative to the raft is 15 km/h.
When the motorboat is moving upstream, its speed relative to the ground is 12 km/h, so its speed relative to the raft is again 15 km/h.
Converted to m/min, the relative speed is:
15 km/h × (1000 m/km) × (1 h / 60 min) = 250 m/min
It takes the motorboat 16 minutes to travel to the front of the raft and back. Since the speed is the same in both directions, the motorboat takes 8 minutes to travel the length of the raft.
So the length of the raft is 250×8 = 2000 meters.
