Answer:

Step-by-step explanation:
Given:
The speed of the radio is
meters per second.
The distance of the satellite from the earth is
meter
The formula of the speed is

For time the formula is.

put distance and speed value in above equation.





Therefore, the radio will be take the time is
or 0.12 seconds.
Answer:
AC =4DB
Step-by-step explanation:
D is midpoint of AB .So, AD = DB
AB = 2DB ---------- (i)
B is the midpoint of AC.So, AB = BC
AC = 2AB
= 2*2DB {FROM 1}
=4DB
24 thirds (24/3) or 8 (simplified)