document.write( "Question 957164: The mass (in Mg) of the fuel supply in the first-stage booster of a rocket is m = 135 - 6t - t^2, where is the time ( in s) after launch. When does the booster run out of fuel \n" ); document.write( "

Algebra.Com's Answer #584922 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"135+-+6t+-+t%5E2=0\"$
\n" ); document.write( " $\"t%5E2%2B6t-135=0\"$
\n" ); document.write( " $\"%28t-9%29%28t%2B15%29=0\"$
\n" ); document.write( "Only positive t makes sense here.
\n" ); document.write( " $\"t-9=0\"$
\n" ); document.write( " $\"t=9\"$ $\"s\"$ \n" ); document.write( "

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