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VashaNatasha [74]
3 years ago
15

Find the discriminant. 7z2–7z+1=0

Mathematics
1 answer:
Yuki888 [10]3 years ago
7 0

Answer:

21

Step-by-step explanation:

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a club is holding a raffle. Ten thousand tickets have been sold for $2 each. There will be a 1st prize of $3000, 3 second prizes
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Answer:

1000(1/20000) +

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=

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Step-by-step explanation:

Each ticket purchased is expected to win 9 cents

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If you interpret expected winnings per ticket to include the cost then each ticket is expected to lose 66 cents.

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2 years ago
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Step-by-step explanation:

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