document.write( "Question 1055075: A test has 10 questions. You must answer a total of 7 questions, including exactly 4 of the first 6 questions.
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document.write( "A) In how many ways can you choose 4 of the first 6 questions?
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document.write( "B) How many questions are left after you have answered 4 of the first 6 questions? How many must you still answer?
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document.write( "C) In how many ways can you choose questions to finish the test?
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document.write( "D) How many different ways are there of completing the test (meeting all of its requirements)? *** note.. I have answered question A\r
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document.write( "Thank you! \n" );
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Algebra.Com's Answer #670269 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A test has 10 questions. You must answer a total of 7 questions, including exactly 4 of the first 6 questions. \n" ); document.write( "A) In how many ways can you choose 4 of the first 6 questions?:: 6C4 = 15 \n" ); document.write( "-------------------------------------------- \n" ); document.write( "B) How many questions are left after you have answered 4 of the first 6 questions?:: 6 \n" ); document.write( " How many must you still answer? 3 \n" ); document.write( "-------------------------------------------- \n" ); document.write( "C) In how many ways can you choose questions to finish the test? \n" ); document.write( "6C3 = 20 \n" ); document.write( "------------------------- \n" ); document.write( "D) How many different ways are there of completing the test (meeting all of its requirements)? \n" ); document.write( "Ans:: 15*20 = 300 \n" ); document.write( "------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "---------- \n" ); document.write( " |