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Umnica [9.8K]
3 years ago
9

you are sitting on the edge of a pool with your legs in the water .as light waves pass from the pool into the air it look like y

our legs are not attached at the knees where they meet the water.this is because when they pass from one medium to another​
Mathematics
1 answer:
dem82 [27]3 years ago
6 0

Answer: The reason they do this is water refraction. I don't know if this was a question or not, but here you go.

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49x^2+70x+25

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Read 2 more answers
4. Automobile policies are separated into two groups: low-risk and high-risk. Actuary Rahul examines low-risk policies, continui
ANTONII [103]

Answer:

Step-by-step explanation:

for n ∈ N

Since Actuary Rahul examines low-risk policies, continuing until a policy with a claim is found and then stopping.

∴ the probability that Actuary Rahul examines exactly n policies

(0.9)^{n-1}.(0.1)---(1)

the probability that Actuary Toby examines more than  exactly n policies

(0.8)^n---(2)

Given that policies are actually independent

∴ the probability that the event  (1) and (2) happens simultaneously is

(0.9)^{n-1}*(0.1)*(0.8)^n

∴  the probability that Actuary Rahul examines fewer policies than Actuary Toby

\sum ^\infty _{n=1} (0.9)^{n-1}*(0.1)*(0.8)^n\\\\=(\frac{0.1}{0.9} \sum ^\infty _{n=1}(0.72)^n\\\\=\frac{1}{9} (\frac{0.72}{0.28} )\\\\=\frac{2}{7} \\\\=0.2857

<h3>the probability that Actuary Rahul examines fewer policies than Actuary Toby is 0.2857</h3>
5 0
3 years ago
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