Question

15 Topics F HW 4-10 2,50 310.4.10.5 Counting and Probability Counting and Probability • Counting and Probability Permutations and combinations: Problem Probability of dependent events: Decimal answers Counting arrangement not all distinct type 2 Tags Go Top Video Togs locked Video Tags Goal Tooc. Video Answer the questions below. (a) There are 16 appetizers available at a restaurant. From these, Nancy is to choose 12 for her party. How many groups of 12 appetizers are possible? X (6) To log on to a certain computer account, the user must type in a 3-letter password. In such a password, no letter may be repeated, and only the lower case of a letter may be used. How many such 3-letter passwords are possible? (There are 26 letters in the alphabet.) Continue 2020 on Al Resoru 3 S 4 5 6 7 2 9 0 Q w E R Т. Y А S D F G H JC K N X С V B N M ution Com

Answer 1

16C ₂2 12 appetizers out of 18- appetize83 Choosing 161 12! (16-12)! 16x15x14x13x+2! 12+ x 4 ! 16x15x14x13 4X3 X2X1 1820 ade possible. There 982 1820 groups of 12- appetizers Ć 28 x 25x24 3- letter possible passwoods o 15,600