3x=x+40
2x=40
x=20°
The two angles are equal, because they are vertically opposite. So you can equate them and get the answer.
The correct answer among the choices listed is the second option. The scientific notation of 6,370 kilometers is 6.370 × 10^3 kilometers. It is by this way that scientists are able to handle very large or small numbers. They just move the decimal point and multiply it by 10 raise to the power of n where n is the number of times the decimal point is moved. If to the left, then n is positive. If to the right, then n is negative.
n = 20.83
125 / 6 = 20.83
their are 6 sides in a cube and 125 cubic centimeters
you're welcome
