document.write( "Question 1064121: If an object is propelled upward from a height of s feet at an initial velocity of v feet per​ second, then its height h after t seconds is given by the equation h=−16t^2+vt+​s, where h is in feet. If the object is propelled from a height of 88 feet with an initial velocity of 96 feet per​ second, its height h is given by the equation h=−16t^2+96t+8.
\n" ); document.write( "After how many seconds is the height 148 ​feet?
\n" ); document.write( "

Algebra.Com's Answer #679166 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
h=−16t^2+96t+8.
\n" ); document.write( "------
\n" ); document.write( "I'll assume you meant 88 feet.
\n" ); document.write( "h=−16t^2+96t+88 = 148
\n" ); document.write( "Solve for t.
\n" ); document.write( "2 values for t, ascending and descending.
\n" ); document.write( "
\n" ); document.write( "
\n" );