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NeTakaya
3 years ago
8

Evaluate. 5 P 3 x 6 C 4 a. 150 b. 300 c. 900

Mathematics
2 answers:
ella [17]3 years ago
8 0

Answer:

Option (c) is correct.

^5P_3\times^6C_4  is 900

Step-by-step explanation:

 Given  :Expression  ^5P_3\times^6C_4      

We have to find the value of given expression ^5P_3\times^6C_4  

Consider the given expression  ^5P_3\times^6C_4        

The possibility of choosing an ordered set of r object from n object is given by  

nPr=\frac{n!}{\left(n-r\right)!}

and The number of subset of r elements from n elements           nCr=\frac{n!}{r!\left(n-r\right)!}        

Thus, ^5P_3=\frac{5!}{\left(5-3\right)!}==\frac{5!}{2!}=5\cdot \:4\cdot \:3=60

and ^6C_4=\frac{6!}{4!\left(6-4\right)!}==\frac{6!}{4!\cdot \:2!}==\frac{6\cdot \:5}{2!}=15

Thus, ^5P_3\times^6C_4=60\times 15=900    

Thus,  ^5P_3\times^6C_4  is 900

Marina CMI [18]3 years ago
3 0
The answer is 300 because if u x the 5x3=15 and divide 6 and 4 is 1.5 then multipy that 22 then you put the letters in the equations
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