pinktho123 pinktho123
  • 04-09-2019
  • Mathematics
contestada

Solve the expression 7^P 2 (P = permutation)

42


2,640


120


5,040

Respuesta :

mathstudent55
mathstudent55 mathstudent55
  • 04-09-2019

Answer:

42

Step-by-step explanation:

[tex] _aP_b = \dfrac{a!}{(a - b)!} [/tex]

[tex] _7P_2 = \dfrac{7!}{(7 - 2)!} [/tex]

[tex] _7P_2 = \dfrac{7 \times 6 \times 5!}{5!} [/tex]

[tex] _7P_2 = 7 \times 6 [/tex]

[tex] _7P_2 = 42 [/tex]

Answer Link

Otras preguntas

how must a projectile be launched in order to maximize its range?
Solve the equation for y.4x – 5y = 9
can you simplify 25/4? if so, how?
What is an adjective phrase?
Express 230 in scientific notation
tanisha ran 3/5 of a 26 mile race in 3.2 hours.if she ran at a constant rate,what was her speed in miles per hour?
There are 30 students in a class that took a test. The average grade of 10 students was 80. The other 20 students average was 89. What is the overall average fo
What constitutional principle did the supreme court establish in the McCulloch case
Simplify the expression. [90 – (12 + 13)](15 ÷ 3)
a ball is tossed vertically upward rises, reaches it's highest point, and then falls back to its starting point. during the time, the acceleration of the ball a