The distance to star A is about 8x10^3 light years. The distance to Star B is about 6x10^5 light years. Find which star is farther away. Then find by how much in scientific notation.

1 answer

To compare the distances, we can simply compare the exponents in the scientific notation. The exponent of the distance to star A is 3, while the exponent of the distance to star B is 5.

Since 5 is greater than 3, it means that the distance to star B is farther away than the distance to star A.

To find the difference in scientific notation, we can subtract the exponents: 5 - 3 = 2.

Therefore, star B is farther away from us than star A by a factor of 10^2, which can be expressed in scientific notation as 1x10^2.