document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=192723>Question 192723</A>: <I><SPAN STYLE=\"word-break: break-all;\"> One common use of positive and negative exponents is in writing numbers as scientific notation. For example 0.000052 can be written as 5.2 × 10-5. A) Use scientific notation and the laws of exponents to evaluate (0.000048)(0.0000035)(0.00014). Leave your answer in scientific notation. B) If a space probe travels at 100 kilometers per second for 12 years, how far will it travel? Write your answer in scientific notation. (Assume 1 year = 365 days)\r<BR>\n" );
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document.write( "Scientific Notation: A number is expressed in scientific notation when it is in the form<BR>\n" );
document.write( " a × 10n<BR>\n" );
document.write( " where a is greater than or equal to 1 but less than 10 and n is an integer.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #144643 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=144643\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  A) Use scientific notation and the laws of exponents to evaluate (0.000048)(0.0000035)(0.00014). Leave your answer in scientific notation. <BR>\n" );
document.write( "(4.8x10^-5)(3.5x10^-6)(1.4x10^-4) = 2.352x10^-14<BR>\n" );
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document.write( "B) If a space probe travels at 100 kilometers per second for 12 years, how far will it travel? Write your answer in scientific notation. (Assume 1 year = 365 days) <BR>\n" );
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document.write( "seconds in 12 years: 12*365*24*60*60 = 3.784x10^8<BR>\n" );
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document.write( "distance covered at 100 km per sec. = 3.784x10^10<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.  </SPAN>\n" );
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