Answer:
p^2-2p+1
Step-by-step explanation:
(p-1)^2
Using the formula (a-b)^2=a^2-2ab+b^2
Applying the formula (p-1)^2=p^2-2(1)(p)+1^1=p^2-2p+1
Answer:
4/12
Step-by-step explanation:
Answer:
1/3
Step-by-step explanation:
2nd one
Answer:
21
Step-by-step explanation:
Given,
- Number of red marble = 4
- number of green marble = 3
- number of transparent marble = 1
- number of yellow marble = 3
- number of orange marble = 3
Total number of marble except red and green = 3 +3+1
= 7
So, the total number of possible sets of five marbles such that none of them are green or red can be given by




= 21
So, the required number of possible sets are 21.
Im not sure but I think u have to add or multiply