Answer:
Step-by-step explanation:
Angle of incidence is the angle formed at the point of incidence between the incident ray and the normal. Angle of refraction is the angle formed between the refracted ray and the normal .
According to Snell's law,
Here, are indexes of incidence and refraction.
are angles of incidence and refraction.
Given:
On putting these values in the Snell's law, we get
10/16 = 20/32 = 100/160 = 500/800 (It also simplifies to 5/8.)
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Step-by-step explanation:
The answer to the question above is drawn in the attached picture.
Note that the symbol, less than or equal to, is a shaded ring. Also, the inequality is interpreted as zero is less than or equals x and x is less than or equals 2. Hence, the joint inequality is presented as shown in the attached picture.
If all were children, revenue would be 700*$7 = $4900. Revenue is actually $6400 -4900 = $1500 more than that. Each adult admission that replaces a child's admission adds $10 -7 = $3 to the revenue, so there must have been
$1500/$3 = 500 . . . . adult admissions
There were 200 children at the show.
There were 500 adults at ths show.
18,18,19,22,22,24,27,29,31,31,34,46,51,57. The youngest would be 18 and the oldest would be 57. I hope this helps