Answer:3.8181818181818181818181818181818
not spam i swear
Step-by-step explanation:
Answer:
circumference of the circle=2πr
5.7 cm
The time taken for radio signal to the earth's surface we shall proceed as follows;
time=(distance)/(speed)
Distance=7.5×10^6 meters
speed=3×10^8 meters/second
therefore:
Time=(7.5×10^6)/(3×10^8)=0.025 seconds
We conclude that it will take the signal 0.025 seconds to reach the surface of the earth.
Answer: -30
Step-by-step explanation:
(-6) x (7) - (6) x (-2)
(-42) - (-12)=
-30
Hope this helps :)
