Answer:
I think the answer would be C.
Step-by-step explanation:
hope I help
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:
The largest possible value for the third side is 18.
Step-by-step explanation:
Here, the first side of the triangle = 17
Second side of the triangle = 2
Let us assume the third side of the triangle = m
Now, In any given triangle:
"Sum of any two sides of a triangle is strictly greater than the third side."
⇒ Sum of first side + Sum of second side > Third Side
or, m < 17 + 2
or, m < 19
hence, the largest possible value for m = 18
1)421x=6
x=70
2)x+6(6x)=420
x+36x=420
37x=420
x=11
3)x-6x=420
5x=420
x=84
4)x+6x=420
7x=420
x=60