Answer:
Step-by-step explanation:
angle at the center

Answer: An area or ridge of land and it’s useful because separates waters from flowing into different rivers
Step-by-step explanation: hope this helps
Answer:

Step-by-step explanation:
From the question we are told that
5% solution of dextrose sugar in water
20% solution of dextrose in
100 milliliters of distilled water water
Generally in mathematically solving we call A the amount of D20W added
Since 20% of dextrose is needed

Total quantity after addition (100+x)
for DW5% total solution is


Mathematically




Therefore the required quantity 
A) x -y = 4
B) x + y = 30
x = 4 + y So,
B) 4 + y + y =30
2 y = 26
y = 13
x = 17
Answer:
3in
Step-by-step explanation: