document.write( "Question 482336: The diameter of the earth is approximately 8000 miles. Heavenly Helen, in a spaceship 100 miles above the earth, sights Earthly Earnest coming over the horizon. Approximately how far apart are Helen and Earnest? \n" ); document.write( "
Algebra.Com's Answer #330209 by Alan3354(69443)\"\" \"About 
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If Earnest (an odd spelling of Ernest) is on the surface of the Earth:
\n" ); document.write( "\"d+=+sqrt%284100%5E2+-+4000%5E2%29+=+900\" miles
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