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s344n2d4d5 [400]
3 years ago
14

What are perfect numbers? Find the only 3examples below 500

Mathematics
1 answer:
liubo4ka [24]3 years ago
4 0

The first two are 6 and 28. The factors of 6 add up to the same thing as 6.

Six

1 * 2 * 3 = 6

1 + 2 + 3 = 6

Twenty eight

1 + 2 +  4 + 7 + 14 = 28 (the multiplication is not the same as for 6).

Four hundred ninety Six

This one is kind of hard to believe

It is 16 * 31

1 + 2 + 4 + 8 + 16 + 248 + 124 + 62 + 31 = 496

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Nine buses hold 85 people each. If 693 people buy tickets for a trip, how many seats won’t be taken?
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Answer:

72

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you take 85 * 9

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3 years ago
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3 years ago
Say that a supplier claims they are 99% confident that their products will be in the interval of 50.02 to 50.38. You take sample
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Answer:

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Step-by-step explanation:

According to the provider, this same width of that same confidence interval would be as follows:

= 50.38 - 50.02

= 0.36

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= 50.39 - 50.01

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