$\bf _nP_r=\cfrac{n!}{(n-r)!}\qquad \qquad \stackrel{\textit{25 books off a total of 27}}{_{27}P_{25}=\cfrac{27!}{(27-25)!}} \\\\\\ _{27}P_{25}=\cfrac{27!}{2!}\implies 5444434725209176080384000000$

you can always check your calculator also for a [ ₙPᵣ ] button.

4 0

3 years ago

Pls help me rn bec sue tmr pls pls

blagie [28]

Answer:

Number of 1-cm cube 24. Volume of solid 24 cm^2

Step-by-step explanation:

3 0

3 years ago

Solve the system using substitution 3x+7y=3<br> x-3y=-15

erik [133]

Answer:

3x+7y=3

x-3y=-15

2x+4y=-18

HOPE THIS HELPS!!!!!!!

6 0

3 years ago

Ocdjiowfhva;<br>brbnhgdn

kotegsom [21]

Answer:

yup i guess

Step-by-step explanayuption:

7 0

3 years ago