document.write( "Question 1199938: Cliff left point A at 8:00 A.M walking east at 3 kph. Renz left point A at 9:00 A.M walking north at 4 kph. The distance between the two boys since 8:00 A.M may be expressed as d(t)= √(〖at〗^2-2βt+β) where d and t denote the respective distance and time. Find a+β. \n" ); document.write( "
Algebra.Com's Answer #848205 by ikleyn(52756)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "Formulation of this problem is  FATALLY  INCORRECT,  since it incorrectly determines
\n" ); document.write( "that time variable  \" t \"  is counted from  8 AM.\r
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\n" ); document.write( "\n" ); document.write( "To be correct,  \" t \"  must be counted from  9 AM.\r
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\n" ); document.write( "\n" ); document.write( "An accurate mathematical formulation should determine it explicitly,  without any discussions.\r
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\n" ); document.write( "\n" ); document.write( "Did I say  \" should \"  in my previous sentence ?\r
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\n" ); document.write( "\n" ); document.write( "- No,  surely not  \" should \".   It  MUST.\r
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