contestada

Need urgent help in mathematics!! Will mark brainliest!!!!
PLEASE look at the photo to answerthe question .....

In the photo you will find the question and the answer choices!!!!

Need urgent help in mathematics Will mark brainliest PLEASE look at the photo to answerthe question In the photo you will find the question and the answer choic class=

Respuesta :

tramserran

₇P₅ is a permutation. you can find this setting in the statistics menu of your scientific calculator (i think).

If you don't have a scientific calculator, you can use the following formula:

nPr = [tex]\frac{n!}{(n - r)!}[/tex]

₇P₅  = [tex]\frac{7!}{(7 - 5)!}[/tex]

     = [tex]\frac{7}{2!}[/tex]

     = [tex]\frac{7 * 6 * 5 * 4 * 3 * 2!}{2!}[/tex]

     = 7 * 6 * 5 * 4 * 3

    = 2520

Answer: C

Hello!

7P5 is read as "is read "the number of permutations of 7 different things taken 5 at a time".

This means that each arrangement represents a different arrangement of 5 things out of a group of 7 things.

To show this, it would be written as: [tex]nPr = \frac{n!}{(n-r)!}[/tex]. In this case, n is equal to 7 and r is equal to 5.

[tex]7P5 = \frac{7!}{(7-5)!}[/tex] (simplify the parentheses and simplify the factorial)

[tex]7P5 = \frac{7 * 6 * 5 * 4 * 3 * 2 * 1}{2 * 1}[/tex] (simplify the fraction)

[tex]7P5 = 2520[/tex]

Therefore, the answer is the third choice, 2520.

Otras preguntas