What is the fourth term (k = 3) for (x + y)^11?
1 answer:
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Answer:
Step-by-step explanation:
This book has 500 pages in total.
We should split up the place values.
1 - 9
One only appears once.
1
10 - 19
One appears 11 times.
1 + 11
20 - 99
One only appears 8 times.
1 + 11 + 8
Add:
1 + 11 + 8
=> 20
Since the same is for 200-299, and so on. Let us add twenty four times.
20 * 4
=> 80
Looking back to 100-199, there are 120 ones.
Add:
120 + 80
=> 200
The amount of water decreases pints in 12 weeks.
Solution:
The amount of water decreases in 7 weeks = pints
The amount of water decreases each week is same.
Let us first change the mixed fraction into improper fraction.
pints =
pints
The amount of water decreases in 1 week
So, the amount of water decreases in 1 week is pints.
The amount of water decreases in 12 week
pints
Hence the amount of water decreases pints in 12 weeks.