document.write( "Question 124562This question is from textbook Amsco's Preparing for the regents examination mathematics B
\n" ); document.write( ": 3. z^-5/3 = 243\r
\n" ); document.write( "\n" ); document.write( "4. 2a^-1/4 = 12\r
\n" ); document.write( "\n" ); document.write( "please explain how you got the answer with work, thank you so much
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Algebra.Com's Answer #91294 by edjones(8007)\"\" \"About 
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z^-5/3 = 243
\n" ); document.write( "243^3/5=27 calculator
\n" ); document.write( "z=1/27
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\n" ); document.write( "Check:
\n" ); document.write( "(1/27)^-5/3
\n" ); document.write( "=27^5/3
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\n" ); document.write( "2a^-1/4 = 12
\n" ); document.write( "a^-1/4=6
\n" ); document.write( "6^4=1296 inverse of ^1/4
\n" ); document.write( "a=1/1296
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\n" ); document.write( "Check:
\n" ); document.write( "(1/1296)^-1/4
\n" ); document.write( "=1296^1/4
\n" ); document.write( "=6
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\n" ); document.write( "Ed\r
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