Answer:
17 m
Step-by-step explanation:
As shown in the figure, 
is the ground level, 
is the old level of water which was at 20 m below ground level, 
is the new level of water which is 5m above of old level. The height of wall of the well, 1.20 m, and the the pelly at 80 cm =0.80 m, has been shown too.
The minimum length of the rope is equal to the distance between the pully and the new water level, indicated by the length 
in the figure.
So, 
Hence, Raghu must use a rope having the minimum length 17 m to draw water from the well.
I’m gonna guess B but can’t tell you for sure if you don’t post a pic lol
To solve this problem you must apply the proccedure shown below:
1. You must apply the Law of Cosines, as you can see in the figure attached. Then:
- The first ship travels at 
in for two hours. Therefore, the side 
is:
- The second ship travels at 
for 
. Therefore, the side 
is:
- Now, you can calculate 
:
The answer is: 
Answer:
Two.
Step-by-step explanation:
Simultaneous equation is a Finite sets of equations whose common solutions are sought.
Two solutions in the equation above is sought.
Answer:
2.3h - 2.9d - 14
Step-by-step explanation:
6h - 3.7h - 7.9d + 5d - 14
= 2.3h - 2.9d - 14
