document.write( "Question 105585: A window washer accidentally drops a bucket from the top of a 64-foot building. The height (h) of the bucket after t seconds is given by the following formula: h=-16t^2+64. How long will it take for the bucket to hit the ground? \n" ); document.write( "

Algebra.Com's Answer #76845 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
At time t=0, the bucket is at a height of 64 feet,
\n" ); document.write( " $\"h=-16t%5E2%2B64\"$
\n" ); document.write( " $\"h%280%29=-16%280%29%5E2%2B64\"$
\n" ); document.write( " $\"h%280%29=64\"$
\n" ); document.write( "At what time will the bucket hit the ground, that is, when is the height equal to zero?
\n" ); document.write( " $\"h%28t%29=-16t%5E2%2B64=0\"$
\n" ); document.write( " $\"-16t%5E2%2B64-64=0-64\"$ Additive inverse of (64)
\n" ); document.write( " $\"-16t%5E2=-64\"$
\n" ); document.write( " $\"-16t%5E2%2F%28-16%29=-64=-16\"$ Multiplicative inverse of (-16)
\n" ); document.write( " $\"t%5E2=4\"$
\n" ); document.write( " $\"t=2\"$
\n" ); document.write( "In takes 2 seconds for the bucket to hit the ground.
\n" ); document.write( "Look out below! \n" ); document.write( "

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