6. If P(n,r) = 336, which of the following are possible values of n and r? A. n=6, r=4 B. n=7, r=3 C. n=8, r=3 D. n=9, r=2 7. What is the permutation notation of 10 students sit in 10 front seats of an auditorium? A. P(10,10) B. C (10,10) C. C (10,9) D. P (10,9)
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The formula for permutations is P(n) = n!/(n-r)!. We can plug in the given values and solve for n: n!/(n-r)! = 336 We can start by trying the first option, n-6, r=4: (n-6)!/(n-6-4)! = 336 Simplifying this equation, we get: (n-6)!/(n-10)! = 336 We can see Show more…
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