xxethuggethalieser
xxethuggethalieser xxethuggethalieser
  • 21-09-2016
  • Mathematics
contestada

What is the value of 7P3 ?

A.
21

B.
35

C.
210

D.
840

Respuesta :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 21-09-2016
7P3 = 7!/(7-3)! = 7!/4! = (7 x 6 x 5 x 4!)/4! = 7 x 6 x 5 = 210
Answer Link
taskmasters
taskmasters taskmasters
  • 23-09-2016
P here signifies permutation. We just use the permutation formula to solve this problem. It is expressed as:

nPr =  n ! / ( n − r ) !

We calculate as follows:

7P3 = 7! / (7-3)! = 5040 / 24 = 210

Therefore, the correct answer is option C, 210.
Answer Link

Otras preguntas

What is the fraction 18/24 reduced to its lowest terms? A. 9/12 B. 3/4 C. 24/18 D. 18/24
A soccer ball is kicked straight up from the ground with an initial velocity of 32 feet per second. Its height above ground in feet is given by: s(t)=-16t^2 +32
Find the 6th term in the expanded form of the equation (2x+y)^9
what is 12.345 rounded to the nearest tenth
what does 'secret, black and midnight hags' mean in shakespeare?
resources are an integral part of human survival.yet indiscriminate use of them by humans has led to a crisis situation."discuss the above ststement in light of
the total cost of 3 tables & 2 chairs is rs 1850 ...if a table RS 75 more than a chair ,find the price of each ?
if the minimum velocity of a projectile is double the minimum velocity,the angle of projection is
what is the gcf and lcm of 390 and 250
what are the rational numbers of -12,0,35,4.85,√12,√36,19/6,-10/11,1.4949949994