document.write( "Question 1033407: An astronaut r thousand miles from the center of the earth weighs \"2880%2Fr%5E2\" lbs, and the surface of the earth 4000 is miles from the center.\r
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Algebra.Com's Answer #648024 by ikleyn(52781)\"\" \"About 
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document.write( "(a) If the astronaut is h miles above the surface of the earth, express r as a function of h. \r\n" );
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document.write( "    r = 4000 + h.\r\n" );
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document.write( "(b) Express the astronaut's weight w in pounds as a function of h.\r\n" );
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document.write( "    w = \"2880%2F%284000%2Bh%29%5E2\".\r\n" );
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