document.write( "Question 861452: 1. There are 12 red checkers and 3 black checkers in a bag. Checkers are selected one at a time, with replacement. Each time, the color of the checker is recorded. Find the probability of selecting a red checker exactly 7 times in 10 selections. Show your work. \r \n" );
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document.write( "2. 4. Use the binomial theorem to expand (2x – 5y)3. Show all your work.\r \n" );
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