document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=931242>Question 931242</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need help with this problem!\r<BR>\n" );
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document.write( "Air pressure at sea level is approximately 14.7 pounds per square inch. The function P(x) = 14.7e^-0.21x models the average atmospheric pressure, P(x) in pounds per square inch, at an altitude of x miles above sea level. Use the model to approximate the atmospheric pressure at the summit of K-2 (28,251 ft). Express your answer in pounds/sq inch rounded to the nearest tenth. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #565516 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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/cgi-bin/show-face.mpl?user=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=565516\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The summit of K-2 is 28251 / 5280 = 5.350568182 miles<BR>\n" );
document.write( "P(x) = 14.7e^-0.21x = 14.7e^-0.21*5.350568182<BR>\n" );
document.write( "note that e = 2.718281828<BR>\n" );
document.write( "P(x) = 14.7 * 2.718281828^(-0.21*5.350568182)<BR>\n" );
document.write( "P(x) = 4.778984976 approx 4.8 pound per square inch<BR>\n" );
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