Jake is building a circular sandbox for his son. How many plastic blocks will he need to make one layer around the sandbox?
2 answers:
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Answer: 65,780
Step-by-step explanation:
When we select r things from n things , we use combinations and the number of ways to select r things =
Given : The total number of playing cards in a deck = 52
The number of different five-card hands possible from a deck = 2,598,960
In a deck , there are 26 black cards and 26 red cards.
The number of ways to select 5 cards from 26 cards =
Hence, the number of different five-card hands possible from a deck of 52 playing cards such that all are black cards = 65,780