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Ilya [14]
3 years ago
5

Round 529 to 2 significant figures

Mathematics
2 answers:
KATRIN_1 [288]3 years ago
7 0
53 is the answer...........
Gnesinka [82]3 years ago
3 0
53 I hope I helped :)
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2 years ago
The waking time of a student under common conditions is normally distributed with mean of 30 hours and a standard deviation of 5
Elina [12.6K]

Answer:

If the walking time is greater than or equal to 38.225 hours, than it exceeds 95% probability that is lie in top 5%.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 30 hours

Standard Deviation, σ = 5 hours

We are given that the distribution of waking time is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

We have to find the value of x such that the probability is 0.95

P( X < x) = P( z < \displaystyle\frac{x - 30}{5})=0.95  

Calculation the value from standard normal z table, we have,  

\displaystyle\frac{x - 30}{5} = 1.645\\\\x = 38.225  

Thus, if the walking time is greater than or equal to 38.225 hours, than it exceeds 95% probability that is lie in top 5%.

4 0
3 years ago
Please help me! I'm confused. Also, do not put any nonsense answers please. Thanks!
Nonamiya [84]

Answer:

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Step-by-step explanation:

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7 0
2 years ago
Read 2 more answers
37.362 is 7 4/5 % of what number?
rodikova [14]
To find the answer you just need to multiply 37.362 by .7 4/5 and add that answer to 37.362 and you get 62.27. 
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3 years ago
Which algebraic expression is equivalent to the expression below 6(2x+5)+4x
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This is 12x + 34 because when we combine all like terms, we get it.
6 0
3 years ago
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