document.write( "Question 1043565: a ball is dropped from a height of 30 feet.each time it strikes the ground, it bounces up to 4/5 of the previous height. how many times does the ball hit the ground before it bounces up less than 6 feet? \n" ); document.write( "

Algebra.Com's Answer #658712 by ikleyn(52794) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "a ball is dropped from a height of 30 feet.each time it strikes the ground, it bounces up to 4/5 of the previous height.
\n" ); document.write( "How many times does the ball hit the ground before it bounces up less than 6 feet?
\n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~~~~~~\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "

\r\n" );
document.write( "# of hit/bounce   height of bouncing\r\n" );
document.write( "0	          30.00\r\n" );
document.write( "1	          24.00\r\n" );
document.write( "2	          19.20\r\n" );
document.write( "3	          15.36\r\n" );
document.write( "4	          12.29\r\n" );
document.write( "5	           9.83\r\n" );
document.write( "6	           7.86\r\n" );
document.write( "7	           6.29\r\n" );
document.write( "8	           5.03\r\n" );
document.write( "9	           4.03\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Geom. progression.  = 30, common ratio r = .\r\n" );
document.write( "\r\n" );
document.write( " = , n = 1, 2, 3, . . . height after n-th bounce.\r\n" );
document.write( "\r\n" );
document.write( "Your n is 7.\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( "On geometric progressions, read the lesson\r
\n" ); document.write( "\n" ); document.write( " - Geometric progressions\r
\n" ); document.write( "\n" ); document.write( "in this site.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );