Mathematics: There are 12 students in a social studies class. three students will be selected to present their term projects today. in how many different orders can three students be selected? 1,320 220 504 36

There are 12 students in a social studies class.

nicollexo21

01.06.2020

As, If the order is important then we use permutation;

total no. of students= 12
selected students= 3

12P3= 12!/(12-3)!=1320

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67bryant

13.03.2022

The correct answer is:

1320.

Explanation:

This is a permutation of n objects taken r at a time.

In this case, n is 12 and r is 3.

The formula is:

$P_r^n=\frac{n!}{(n-r)!} \\ \\=P_3^{12}=\frac{12!}{(12-3)!} \\ \\=\frac{12!}{9!} = 1320$

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joleiswan9919

05.11.2021

1.Finding the Y-Intercept from the Slope and Point

2.Using Two Points

3.Using an Equation

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