Can you help me find out how to work this problem? A light year is the distance

Question

Can you help me find out how to work this problem? A light year is the distance light can travel in one year. This distance is appx. 9,460 billion kilometers. The Milky Way galaxy is estimated to be about 100,000 light years in diameter. 1. Write both distances in scietific notation. Can you help me find out how to work this problem? A light year is the distance light can travel in one year. This distance is appx. 9,460 billion kilometers. The Milky Way galaxy is estimated to be about 100,000 light years in diameter. 1. Write both distances in scietific notation.

Explanation / Answer

I billion is 1*10^9, so 9,460 billion is 9.460 *10 ^12. 100,000 (1* 10^5) times that is 9,460 *10^17.

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