A raffle offers a first prize of $500 and 3 second prizes of $80 each. One ticket costs $1, and 400 tickets are sold. Find the expected payback for a person who buys 1 ticket. Is this a fair game? The expected payback for a person who buys 1 ticket is $. (Round to two decimal places as needed.)

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A: Please refer the attached image for complete solution.

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A: Proof by contradiction

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A: (A)

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A:

Q: Solue

A:

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A: Answer

Q: Pls help ASAP

A:

Q: All of them

A:

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A:

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A:

Q: How would I do this?

A: Given integral can be written as

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Q: 7.21

A:

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A: isthe midsegment of .If , then to determine the length of QR.

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A:

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A: We have to solve