document.write( "Question 330311: The length of the line segment whose endpoints are (3,-2)and ( -4,5) is b square root 2 . What is the value of b \n" ); document.write( "
Algebra.Com's Answer #236739 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "Note: is the first point . So this means that \"x%5B1%5D=3\" and \"y%5B1%5D=-2\".\r
\n" ); document.write( "\n" ); document.write( "Also, is the second point . So this means that \"x%5B2%5D=-4\" and \"y%5B2%5D=5\".\r
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\n" ); document.write( "\n" ); document.write( "\"d=sqrt%28%28x%5B1%5D-x%5B2%5D%29%5E2%2B%28y%5B1%5D-y%5B2%5D%29%5E2%29\" Start with the distance formula.\r
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\n" ); document.write( "\n" ); document.write( "\"d=sqrt%28%283--4%29%5E2%2B%28-2-5%29%5E2%29\" Plug in \"x%5B1%5D=3\", \"x%5B2%5D=-4\", \"y%5B1%5D=-2\", and \"y%5B2%5D=5\".\r
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\n" ); document.write( "\n" ); document.write( "\"d=sqrt%28%287%29%5E2%2B%28-2-5%29%5E2%29\" Subtract \"-4\" from \"3\" to get \"7\".\r
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\n" ); document.write( "\n" ); document.write( "\"d=sqrt%28%287%29%5E2%2B%28-7%29%5E2%29\" Subtract \"5\" from \"-2\" to get \"-7\".\r
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\n" ); document.write( "\n" ); document.write( "\"d=sqrt%2849%2B%28-7%29%5E2%29\" Square \"7\" to get \"49\".\r
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\n" ); document.write( "\n" ); document.write( "\"d=sqrt%2849%2B49%29\" Square \"-7\" to get \"49\".\r
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\n" ); document.write( "\n" ); document.write( "\"d=sqrt%2898%29\" Add \"49\" to \"49\" to get \"98\".\r
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\n" ); document.write( "\n" ); document.write( "\"d=7%2Asqrt%282%29\" Simplify the square root.\r
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\n" ); document.write( "\n" ); document.write( "So our answer is \"d=7%2Asqrt%282%29\" \r
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\n" ); document.write( "\n" ); document.write( "Since \"d=b%2Asqrt%282%29\" and \"d=7%2Asqrt%282%29\", this means that \"b%2Asqrt%282%29=7%2Asqrt%282%29\"\r
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\n" ); document.write( "\n" ); document.write( "So \"b=7\"
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