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3 years ago

I need some help? :(

Mathematics

1 answer:

Gre4nikov [31]3 years ago

3 0

Answer:

imposable posable and all the way down like that

Step-by-step explanation:

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3 years ago

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The length of time Y necessary to complete a key operation in the construction of houses has an exponential distribution with me

Butoxors [25]

Answer:

0.16

Step-by-step explanation:

Given that the length of time Y necessary to complete a key operation in the construction of houses has an exponential distribution with mean 18 hours.

The formula for cost of completing this operation is

$C = 100 + 60Y + 3Y^2$

C has mean 3124

Var(C) = 28,460,160

Std dev (C) = $\sqrt{28460160} \\=5334.81$

X = 4000 hours

Difference = $4000-3124 = 876$

Mean diff/std dev = $\frac{876}{5334.81} \\=0.164$

i.e.nearly 0.16 standard deviations above the mean is 4,000 hours

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3 years ago

Describe how to write 6,397,000,000 in scientific notation.

Gnoma [55]

Answer:

6.397 × 10^9

Step-by-step explanation:

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3 years ago

X=<br> 0 4<br> 06<br> 0 12<br> pls help !

irinina [24]

Answer:

maube 12

Step-by-step explanation:

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3 years ago

PLEASE HELP!

Sveta_85 [38]

$\bf \textit{equation of a circle}\\\\ 
(x- h)^2+(y- k)^2= r^2
\qquad 
center~~(\stackrel{2}{ h},\stackrel{-5}{ k})\qquad \qquad 
radius=\stackrel{12}{ r}
\\\\\\\
[x-2]^2+[y-(-5)]^2=12^2\implies (x-2)^2+(y+5)^2=144$

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3 years ago