Robert Bought new carpet for his living room. The store charged a flat rate of $300.00 to remove the old carpet And install the
2 answers:
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Answer:
Explanation:
Binomial expansion is:
Here in given expression we have a=x , b=-2y and n = 13
general formula for binomial expansion is:
Since,
r should be one number less than the term we need to find so it will become the number we need to find like here we have to find 9th term so, r=8
substituting the values in the genral formula we will get
After substituting the values we will get
After simplification we will get
which will be the 9th term of the expansion
This is a combinations problem.
The total number of possible 2-item combinations is (1000 choose 2)
The number of 2-defective combinations is (300 choose 2)
The probability =
The total number of possible 2-item combinations is (1000 choose 2)
The number of 2-defective combinations is (300 choose 2)
The probability =