Answer:
Time taken by the un powered raft to cover this distance is T = 192.12 hr
Step-by-step explanation:
Let speed of boat = u
Speed of current = v
Let distance between A & B = 100 km
Time taken in downstream = 32 hours
u + v = 3.125 ------ (1)
Time taken in upstream = 48 hours
u - v = 2.084 ------- (2)
By solving equation (1) & (2)
u = 2.6045
v = 0.5205
Now the time taken by the un powered raft to cover this distance
Because un powered raft travel with the speed of the current.
T = 192.12 hr
Therefore the time taken by the un powered raft to cover this distance is
T = 192.12 hr
Answer: 55
Step-by-step explanation:
D=m/v
D=14.4
M=792
V= unknown
14.4=792/v- multiply both sides by V
V • 14.4=792-divide both sides by 14.4
V=55
<span>If you're aware of the binomial theorem, you have that:
</span>
The fourth term is then the case
, from which:
Answer:
OL and M
Step-by-step explanation:
(1)
270° ÷ 30° = 9
Count 9 dashed lines from OJ counterclockwise, then
OJ → OL
(2)
120° ÷ 30° = 4
Count 4 dashed lines from R counterclockwise, then
R → M
