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What is the probability that the first 2 customers both get a 50% discount? What is the probability that none of the 1st 3 customers gets more than a 30% discou

A clothing store advertises that every customer that walks into the store can throw a dice onto a table that has squares labeled with discount amounts. The table is divided into ten regions. 5 regions...

help with light

1.  when light falls on a surface which irregular compared to its wavelength   a.  the reflection is diffuse b.  glare is produced c.  the wavelength is refracted d...

water waves

when water waves pass a log in the water, a smooth area of water is created behind the log.  when the same water waves pass a blade of grass growing in the water there is no smooth area of water...

How fast was the stream flowing?

A girl is swimming downstream. In still water she can swim at 2km/h and the river is flowing with her. She covered a distance of 12km in 2h 24min. How fast was the stream flowing?   a...

frequency of light

    if green light were scattered less often than any other frequency of light what color would the sky appear at sunset?   I dont think it would be red or orange....

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