3 years ago

In how many ways can a teacher arrange 6 students in the front row if there are 30 total students?

Mathematics

1 answer:

katrin2010 [14]3 years ago

8 0

Same as before, Permutation $\bf _nP_r=\cfrac{n!}{(n-r)!}\qquad \qquad _{30}P_6=\cfrac{30!}{(30-6)!}$

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Answer:

320

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2 years ago

Hey please help me if you can I would appreciate it

PolarNik [594]

This is a division problem.
You need to divide 51/2 by 3/2.

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3 years ago

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Let f(x)=2x−1. If 3f(a)=15, what is the value of f(2a)?

Misha Larkins [42]

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2 years ago

Divde the square roots of 121 by the product of the Square roots of 25 and 4

Pavel [41]

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2 years ago

John has 8/9 of a gallon of apple cider vinegar. If it takes 1/7 of a gallon of vinegar to make a batch of collard greens, how m

kumpel [21]

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[multiply by 8/9 through]
8/9 gallon = 7 x 8/9
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2 years ago