Answer:
552
Step-by-step explanation:
This is a problem of permutation which can be solved by rule of fundamental counting principle.
This principle states that if there "m" ways of doing one thing and "n" ways of doing other. Then no. of ways in which both the things can be done together is "m*n". This can be extended for m, n, p,r, s things and so on.
example: if there are 5 shirts and 3 trousers then number of ways in which the shirts and trousers can be worn is 5*3 = 15 ways.
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The given problem is on similar concepts.
here 6 short stories, 4 novels, and 23 poems have to be assigned to his class.
Thus it can be done in 6*4*23 = 552 ways.
Answer:k1/4+k3
k3 1/4
Step-by-step explanation:
The value of –3mn + 4 = –3 when m = 2 and n = 4 is –20
Solution:
Given expression is –3mn + 4 = –3.
To find the value of –3mn + 4 = –3 when m = 2 and n = 4.
⇒ –3mn + 4 = –3
Add 3 on both sides of the equation.
⇒ –3mn + 4 + 3 = –3 + 3
⇒ –3mn + 7 = 0
Substitute m = 2 and n = 4
⇒ –3 × 2 × 4 + 7
Using BODMAS rule first do the multiplication.
⇒ –6 × 4 + 4
⇒ –24 + 4
⇒ –20
Hence the value of –3mn + 4 = –3 when m = 2 and n = 4 is –20.
Answer:
It's value is less than 0
Step-by-step explanation:
Answer:Four years ago, Alex was twice as old as Jake. Four years from now, Jake will be 3/4 of Alex's age. How old is Alex? - Answer: 12.
Step-by-step explanation:
