Answer:
All real numbers
Step-by-step explanation:
4(x+1) = 4x+4
Distribute
4x+4 = 4x+4
Subtract 4x from each side
4x+4-4x = 4x+4-4x
4=4
This is always true so there are infinite solutions
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:
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Step-by-step explanation:
Answer:
B) x - y = 0
Step-by-step explanation:
The equation for the line shown is y=x. This can be written in general form by subtracting y:
x - y = 0
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General form for the equation of a line is ...
ax +by +c = 0
where a, b, c are preferred to be mutually prime integers and a ≥ 0. If a = 0, then b ≥ 0.
Answer: I think it is A
Step-by-step explanation:
