document.write( "Question 692369: a history teacher gives a 20 question true false exam. in how many ways can the test be answered if the possible answers are true or false or possible to leave the answer blank \n" ); document.write( "
Algebra.Com's Answer #426979 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! a history teacher gives a 20 question true false exam. in how many ways can the test be answered if the possible answers are true or false or possible to leave the answer blank \n" ); document.write( "--------------- \n" ); document.write( "3^20 \n" ); document.write( "= 3,486,784,401 ways \n" ); document.write( " |