document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=936693>Question 936693</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the formula for the nth term of a geometric sequence with a4 = 16 and r = `1/2`? <BR>\n" );
document.write( "A) `a_(n)=16(1/2)^(n-1)`` <BR>\n" );
document.write( "B)` `a_(n)=1/2(16)^(n-1)` <BR>\n" );
document.write( "C)`a_(n)=128(1/2)^(n-1)` <BR>\n" );
document.write( "D)`a_(n)=128(2)^(n-1) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #570181 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=570181\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What is the formula for the nth term of a geometric sequence with a4 = 16 and r = `1/2`?<BR>\n" );
document.write( "a(4) = a*(1/2)^3 = 16<BR>\n" );
document.write( "a = 16/(1/8)<BR>\n" );
document.write( "a = 128<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "a(n) = 128*(1/2)^(n-1)<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============== \r<BR>\n" );
document.write( "\n" );
document.write( "C)`a_(n)=128(1/2)^(n-1)` \r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );