Solve for n: nP5=3nP4

This is for Functions, Statistics, Trigonemetry class.
in Trigonometry Answers by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

nP5=3×nP4 is presumably a permutation problem.

n(n-1)(n-2)(n-3)(n-4)=3×n(n-1)(n-2)(n-3),

n-4=3, so n=7.

by Top Rated User (1.2m points)

Related questions

1 answer
solve for x if 20=25cos(5x)
asked Jun 12, 2013 in Trigonometry Answers by anonymous | 616 views
1 answer
Solve tan(-200)
asked May 29, 2013 in Trigonometry Answers by anonymous | 758 views
1 answer
How do I solve Cos(26)=11/x ??
asked Jan 23, 2013 in Trigonometry Answers by anonymous | 801 views
1 answer
how do I solve cos2θ = cos^2θ − 1
asked Apr 4, 2012 in Trigonometry Answers by anonymous | 866 views
1 answer
Solve 2sin(5x)=-√3
asked Jan 8, 2012 in Trigonometry Answers by anonymous | 2.0k views
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!

Most popular questions within the last 3000 days

  1. 50+50-25X0+2+2= (19)
  2. it takes 10 road workers 5 days to complete a road repair when working 2 hours a day.Working at the same pace,how many days will it take 2 people working 5 hours a day to finish it? (3)
  3. Solve 15 -1(12÷4+1)? (4)
  4. 8:4(5+2) (3)
  5. How can i represent 1/3; 3/3; 7/3; 10/3 and 15/3 on a number line? (1)

Most popular tags

87,516 questions
100,279 answers
2,420 comments
731,836 users