document.write( "Question 1161579: Give the correct number of significant figures for 2500, 2500., 0.0043, 0.06050\r
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Algebra.Com's Answer #785182 by Edwin McCravy(20056)\"\" \"About 
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document.write( "A 0 is said to be \"an introductory 0\" if there are no non-zeros anywhere to the left of it.\r\n" );
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document.write( "A 0 is said to be \"an intermediate 0\" if there is a non-zero digit somewhere\r\n" );
document.write( "to the left of it, AND also a non-zero digit somewhere to the right of it.\r\n" );
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document.write( "A 0 is said to be \"a trailing 0\" if there are no non-zeros anywhere to the right of it.\r\n" );
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document.write( "All digits are SIGNIFICANT except 0's, which are sometimes significant\r\n" );
document.write( "and sometimes not, according to the following rules.\r\n" );
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document.write( "Rules:\r\n" );
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document.write( "1. Non-zeros are ALWAYS significant.\r\n" );
document.write( "2. Intermediate 0's are ALWAYS significant.\r\n" );
document.write( "3. Introductory 0's are NEVER significant.\r\n" );
document.write( "4. Trailing 0's are significant if the decimal point shows.\r\n" );
document.write( "5. Trailing 0's are NOT significant if the decimal point DOES NOT show.\r\n" );
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document.write( "2500 has 2 significant digits by rules 1 and 5.\r\n" );
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document.write( "2500. has 4 significant digits by rules 1 and 4.\r\n" );
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document.write( "0.0043 has 2 significant digits by rules 1 and 3.\r\n" );
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document.write( "0.06050 has 4 significant digits by rules 1, 2, 3, 4.\r\n" );
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document.write( "Edwin
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