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"A WC AppCalc Homework C www.webassign.net/web/ tudent/Assignment-Responses submit?dep :16970256 9. 0/1 points I Previous Answers WaneFMAC7 7.4.025 My Notes How many four-letter (unordered) sets are possible that use the letters q, u, a, k, e, s at most once each? 720 x sets Need HelpRead It 10. 0/1 points Previous Answers WaneFMAC7 7.4.031 My Notes A bag contains three red marbles, three green ones, one lavender one, four yellows, and three orange marbles. HINT [See Example 7.] How many sets of four marbles include all the red ones? X sets Need HelpRead It Watch It -1 points WaneFMAC7 7.4.033. A bag contains four red marbles, two green ones, one lavender one, three yellows, and one orange marble. HINT [See Example 7. How many sets of four marbles include none of the red ones? My Notes o sets 3-53 PM 11/12/2017 Type here to search

Explanation / Answer

9. possible number of letters is 6, to form 4 letter words we need to first select 4 out of 6 and then arrange them thus it is 6C4*4! =(6*5/2)*(4*3*2*1)=360

10. include all red in 1 way thus one position is left for remaining 11 marbles, thus answer is 11

11. we dont have to include red , thus 4 can be selected in 7C4 ways. which is 7*6*5/(3*2*1)=35

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