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-Dominant- [34]
3 years ago
11

Anybody have the answer?

Mathematics
1 answer:
mars1129 [50]3 years ago
7 0
Hello!

Here we have sin=opp/hyp so the sin of 45deg= 7/b so we have

Sqrt(2)/2 = 7/b so b= 7/sqrt(2)/2= 14/sqrt(2)= 14*sqrt(2)/2= 7*sqrt(2) so the final simplified answer for the value of b= 7*sqrt(2)

Any questions please ask. Thank you kindly.

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mamaluj [8]

Answer:

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Step-by-step explanation:

Data provided in the question:

X : 1, 2, 3, 4, 5, 6

All the data are independent

Thus,

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Mean, E[X] = \frac{\textup{Sum of all the observations}}{\textup{Total number of observations}}

or

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or

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For 10 days, Mean = 3.5 × 10 = 35

And,

variance = E[X²] - ( E[X] )²

Now, for this case of independent value,

E[X²] = \frac{1^2+2^2+3^2+4^2+5^2+6^2}{\textup{6}}

or

E[X²] = \frac{1+4+9+16+25+36}{\textup{6}}

or

E[X²] = \frac{91}{\textup{6}}

or

E[X²] = 15.167

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variance = E[X²] - ( E[X] )²

or

variance = 15.167 - 3.5²

or

Variance = 2.917

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= 2.917 × 10²

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Answer:

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Leokris [45]

9514 1404 393

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