document.write( "Question 231256: Ok, these type of problems scare me to no end. Can someone please help me with a step by step explanation. Thanks\r
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document.write( "1. sqrt w-9=8\r
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document.write( "2. not sure how to write this problem but it has a 3, then the sqrt sign and inside the sqrt sign is -64.\r
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document.write( "3. this one is similar where it has 3 sqrt sign and 16 inside the sqrt. \r
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document.write( "Any help with either problem is greatly appreciated. \n" );
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Algebra.Com's Answer #171220 by texttutoring(324)![]() ![]() You can put this solution on YOUR website! \r \n" ); document.write( "\n" ); document.write( "1. \n" ); document.write( "\n" ); document.write( "Square both sides to remove the square root sign.\r \n" ); document.write( "\n" ); document.write( "(w-9)=64 \n" ); document.write( "w=73\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2. What you are describing is the 3rd root of -64. Ask yourself, what number when multiplied by itself 3 times, equals -64?\r \n" ); document.write( "\n" ); document.write( "The answer is -4 because (-4)*(-4)*(-4)=-64\r \n" ); document.write( "\n" ); document.write( "Your calculator should have a 3rd root button.\r \n" ); document.write( "\n" ); document.write( "3. Are you sure it wasn't a 4 sqrt sign and 16 inside the sqrt?\r \n" ); document.write( "\n" ); document.write( "I ask because 16 does not have 3rd root that is a rational number. \r \n" ); document.write( "\n" ); document.write( "However, the 4th root of 16 is 2, because 2*2*2*2=16 \n" ); document.write( " |