document.write( "Question 772715: A kangaroo hops in such a way that the distance covered
\n" ); document.write( "in each hop is half that of the previous one. The
\n" ); document.write( "kangaroo started bouncing from a tree and hopped a
\n" ); document.write( "distance of 2 m. on his third hop. How far is the kangaroo
\n" ); document.write( "from the tree after its tenth hop?
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Algebra.Com's Answer #471087 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
If the kangaroo hops \"+a+\" m on the
\n" ); document.write( "1st hop, each succeeding hop is:
\n" ); document.write( "\"+a%2A2%5E%28-n%29+\", where \"+n+\" = 0,1,2,3. . . .
\n" ); document.write( "The sum = \"+a%2A%28+2%5E0+%2B+2%5E%28-1%29+%2B+2%5E%28-2%29%29+\" . . .
\n" ); document.write( "The formula for the geometric sum is:
\n" ); document.write( "\"+a%2A%28+1+-+r%5En%29+%2F+%28+1+-+r+%29+\"
\n" ); document.write( "In this case, \"+a+=+2+\", \"+r+=+1%2F2+\", \"+n+=+10+\"
\n" ); document.write( "Sum = \"+2%2A%28+1+-+%28+1%2F2%29%5E10+%29+%2F+%28+1+-+1%2F2+%29++\"
\n" ); document.write( "Sum = \"+2%2A%28+1+-+1%2F1024+%29+%2F+%281%2F2%29+\"
\n" ); document.write( "Sum = \"+4%2A%28+1023%2F1024+%29+\"
\n" ); document.write( "Sum = \"+1023%2F256+\"
\n" ); document.write( "Sum = \"+3.9961+\"
\n" ); document.write( "The kangaroo is 3.9961 m from the tree\r
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