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lesya692 [45]
3 years ago
14

Help please!!! can you show me how to do this??

Mathematics
1 answer:
IrinaK [193]3 years ago
5 0
\frac{3x - 2}{x^{2} - 2x - 3} - \frac{1}{x - 3} = \frac{3x  -2}{(x + 1)(x - 3)} - \frac{1}{x - 3} = \frac{3x - 2}{(x + 1)(x - 3)} - \frac{1(x + 1)}{(x + 1)(x - 3)} = \frac{3x - 2}{(x + 1)(x - 3)} - \frac{x + 1}{(x + 1)(x - 3)} = \frac{2x - 3}{(x + 1)(x - 3)}
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If y has moment-generating function m(t) = e 6(e t −1) , what is p(|y − µ| ≤ 2σ)?
Lostsunrise [7]
Since \mathrm M_Y(t)=e^{6(e^t-1}, we know that Y follows a Poisson distribution with parameter \lambda=6.

Now assuming \mu,\sigma denote the mean and standard deviation of Y, respectively, then we know right away that \mu=6 and \sigma=\sqrt6.

So,

\mathbb P(|Y-\mu|\le2\sigma)=\mathbb P(6-2\sqrt6\le Y\le6+2\sqrt6)=\dfrac{66366}{175e^6}\approx0.940028
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the location on point k is shown on the number line below. what fraction is represented by the location of point k
Xelga [282]
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7 0
3 years ago
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Let fx) = 8x-3<br> What is (5)?<br> O A. 40<br> O B. 37<br> O C. 45<br> O D. 43
saveliy_v [14]

Answer:

I'm not sure i think B. 37

Step-by-step explanation:

f(x) = 8x-3

f(5)= 8(5)-3

40-3=37

8 0
3 years ago
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Step-by-step explanation:

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zhannawk [14.2K]
The answer is

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